delphi7 关于使用 Generics.Collections 问题

我在使用 SQLiteTable3.pas文件的时候报错 [Fatal Error] SQLiteTable3.pas(80): File not found: 'Generics.Collections.dcu'。 查询了下Generics.Collections 是在delphi2009版本下新增的的泛型容器,而delphi7内没有,公司又不可能升级delphi7。那么有没什么办法让delphi 7可以use Generics.Collections 呢

2个回答

可以自己写一个 库 把SQLiteTable3.pas加进去编译出来,然后在自己的工程下 将dcu加进去就好了

delphi7 没有Generics.Collections单元,这是高版本才有的

caozhy
贵阳老马马善福专业维修游泳池堵漏防水工程 正解,delphi 7不支持泛型
接近 4 年之前 回复
caozhy
贵阳老马马善福专业维修游泳池堵漏防水工程 正解,delphi不支持泛型。
接近 4 年之前 回复
renk510
renk510 我知道是从2009开始有的,所以我想询问下,有没有办法给delphi7加入Generics.Collections单元
接近 4 年之前 回复
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java.lang.ClassNotFoundException: org.springframework.jdbc.CannotGetJdbcConnectionException at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreReflectionFactory.java:114) ... 20 common frames omitted 2019-09-27 20:40:02.282 [main] ERROR o.s.boot.SpringApplication - Application run failed java.lang.IllegalStateException: Error processing condition on org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfiguration.mongoTemplate at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:64) at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:108) at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForBeanMethod(ConfigurationClassBeanDefinitionReader.java:179) at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:141) at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:117) at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:328) at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:233) at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:273) at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:93) at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:694) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532) at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) at com.xuecheng.manage_cms.ManageCmsApplication.main(ManageCmsApplication.java:15) Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfiguration] from ClassLoader [sun.misc.Launcher$AppClassLoader@18b4aac2] at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:659) at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:556) at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:541) at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:599) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:724) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:665) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:633) at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1489) at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1012) at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.addBeanTypeForNonAliasDefinition(BeanTypeRegistry.java:164) at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.addBeanType(BeanTypeRegistry.java:153) at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.updateTypesIfNecessary(BeanTypeRegistry.java:203) at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.getNamesForType(BeanTypeRegistry.java:115) at org.springframework.boot.autoconfigure.condition.OnBeanCondition.collectBeanNamesForType(OnBeanCondition.java:265) at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getBeanNamesForType(OnBeanCondition.java:254) at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchingBeans(OnBeanCondition.java:196) at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchOutcome(OnBeanCondition.java:116) at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47) ... 17 common frames omitted Caused by: java.lang.NoClassDefFoundError: org/springframework/data/mongodb/core/convert/MongoCustomConversions at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) at java.lang.Class.getDeclaredMethods(Class.java:1975) at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:641) ... 34 common frames omitted Caused by: java.lang.ClassNotFoundException: org.springframework.data.mongodb.core.convert.MongoCustomConversions at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 38 common frames omitted 2019-09-27 20:40:02.287 [main] INFO o.s.b.w.s.c.AnnotationConfigServletWebServerApplicationContext - Closing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@59662a0b: startup date [Fri Sep 27 20:39:59 CST 2019]; root of context hierarchy 2019-09-27 20:40:02.293 [main] WARN o.s.boot.SpringApplication - Unable to close ApplicationContext java.lang.IllegalStateException: Failed to introspect Class [org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfiguration] from ClassLoader [sun.misc.Launcher$AppClassLoader@18b4aac2] at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:659) at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:556) at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:541) at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:599) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:724) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:665) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:633) at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1489) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:420) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:390) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:511) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:503) at org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:1198) at org.springframework.boot.SpringApplication.getExitCodeFromMappedException(SpringApplication.java:889) at org.springframework.boot.SpringApplication.getExitCodeFromException(SpringApplication.java:875) at org.springframework.boot.SpringApplication.handleExitCode(SpringApplication.java:861) at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:810) at org.springframework.boot.SpringApplication.run(SpringApplication.java:338) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) at com.xuecheng.manage_cms.ManageCmsApplication.main(ManageCmsApplication.java:15) Caused by: java.lang.NoClassDefFoundError: org/springframework/data/mongodb/core/convert/MongoCustomConversions at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) at java.lang.Class.getDeclaredMethods(Class.java:1975) at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:641) ... 20 common frames omitted Caused by: java.lang.ClassNotFoundException: org.springframework.data.mongodb.core.convert.MongoCustomConversions at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 24 common frames omitted Process finished with exit code 1 ``` **application.yml配置文件** **server: port: 31001 spring: application: name: service-manager-test data: mongodb: uri: mongodb://localhost:27017 database: test authentication-database: admin username: root password: root**

新手关于使用java集合造成的java.lang.StackOverflowError

如图的题目,![图片说明](https://img-ask.csdn.net/upload/201602/27/1456582254_892569.png) 据此,我写了三个类,第一个Student类,代码: ``` package com.wms.StudentManager2; import java.util.List; public class Student { private String name; private int age; private List crList; public List crList() { return crList; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public List getList() { return crList; } public void setList(List crList) { this.crList = crList; } public Student(String name, int age) { super(); this.name = name; this.age = age; } public Student() {} @Override public String toString() { if(crList==null){ return "Student [name=" + name + ", age=" + age + "该生从未选课"; } return "Student [name=" + name + ", age=" + age + ", course=" + crList + "]"; } } ``` 第二个Course类,代码: ``` package com.wms.StudentManager2; import java.util.List; public class Course { private String name; private int score; private List stuList; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getScore() { return score; } public void setScore(int score) { this.score = score; } public List getList() { return stuList; } public void setList(List stuList) { this.stuList = stuList; } public Course(String name, int score,List stuList) { super(); this.name = name; this.score = score; this.stuList = stuList; } public Course() {} @Override public String toString() { return "Course [name=" + name + ", score=" + score + ", student=" + stuList + "]"; } } ``` 第三个Manager类,代码: ``` package com.wms.StudentManager2; import java.util.ArrayList; import java.util.List; public class Manager { public static void main(String[] args) { Student s1 = new Student("张小三", 20); Student s2 = new Student("李小思", 19); Student s3 = new Student("王五", 18); Student s4 = new Student("赵晓丽", 19); Student s5 = new Student("黎明", 20); List<Student> stuList1 = new ArrayList<>(); List<Student> stuList2 = new ArrayList<>(); List<Student> stuList3 = new ArrayList<>(); stuList1.add(s1); stuList1.add(s2); stuList1.add(s3); stuList1.add(s4); stuList2.add(s1); stuList3.add(s1); Course c1 = new Course("高等数学", 5, stuList1); Course c2 = new Course("线性代数", 3, stuList2); Course c3 = new Course("离散数学", 4, stuList3); List<Course> crList1 = new ArrayList(); List<Course> crList2 = new ArrayList(); List<Course> crList3 = new ArrayList(); List<Course> crList4 = new ArrayList(); crList1.add(c1); crList1.add(c2); crList1.add(c3); crList2.add(c1); crList3.add(c1); crList4.add(c1); s1.setList(crList1); s2.setList(crList2); s3.setList(crList3); s4.setList(crList4); System.out.println(c1); } } ``` 如果我不给student setCourseList就可以正常,但是一旦set之后就会报java.lang.StackOverflowError, at java.lang.StringBuilder.<init>(Unknown Source) at com.wms.StudentManager2.Student.toString(Student.java:40) at java.lang.String.valueOf(Unknown Source)等等错误。实在不知道问题出在哪里,希望大家帮忙看下。

在进行MyBatis与spring问题

在进行MyBatis与spring整合时不管是使用映射器方法还是纯的XML方法都出现下列问题,查找资料和官方文档都感觉代码与逻辑没有错!!求解答! 下面是是使用映射器方法的spring配置文件beans.xml的内容: <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="com.mysql.jdbc.Driver"/> <property name="url" value="jdbc:mysql://localhost:3306/test"/> <property name="username" value="root"/> <property name="password" value="root"/> </bean> <bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="DataSource" ref="dataSource" /> </bean> <bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean"> <property name="mapperInterface value="xx.xx.UserMapper"/> <property name="SqlSessionFactory" ref="sessionFactory" /> </bean> <bean id="userDAOImpl" class="com.xx.dao.impl.UserDAOImpl"> <property name="userMapper" ref="userMapper"></property> </bean> 其中UserMapper的代码是: package xx.xx; import java.util.List; import org.apache.ibatis.annotations.Select; import com.yiwei.po.User; public interface UserMapper { @Select("select * from user") public List<User> findAllUser(); @Select("select * from user where id=#{id}") public User findUserById(int id); } UserDAOImpl中的代码是: public class UserDAOImpl implements UserDAO { private UserMapper userMapper; public UserMapper getUserMapper() { return userMapper; } public void setUserMapper(UserMapper userMapper) { this.userMapper = userMapper; } @Override public List<User> findAllUsers() { // TODO Auto-generated method stub List<User> users = userMapper.findAllUser(); return users; } } 下面是测试出现的错误: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [beans.xml]: Initialization of bean failed; nested exception is java.lang.reflect.MalformedParameterizedTypeException at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:480) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409) at java.security.AccessController.doPrivileged(Native Method) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:308) at org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:947) at org.springframework.context.support.AbstractApplicationContext.registerListeners(AbstractApplicationContext.java:701) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:377) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83) at com.yiwei.test.TMyBatis_Spring.test(TMyBatis_Spring.java:17) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229) at org.junit.runners.ParentRunner.run(ParentRunner.java:309) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) Caused by: java.lang.reflect.MalformedParameterizedTypeException at sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl.validateConstructorArguments(ParameterizedTypeImpl.java:60) at sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl.<init>(ParameterizedTypeImpl.java:53) at sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl.make(ParameterizedTypeImpl.java:95) at sun.reflect.generics.factory.CoreReflectionFactory.makeParameterizedType(CoreReflectionFactory.java:105) at sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:140) at sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49) at sun.reflect.generics.repository.ClassRepository.getSuperInterfaces(ClassRepository.java:100) at java.lang.Class.getGenericInterfaces(Class.java:814) at com.sun.beans.TypeResolver.prepare(TypeResolver.java:289) at com.sun.beans.TypeResolver.<init>(TypeResolver.java:254) at com.sun.beans.TypeResolver.getTypeResolver(TypeResolver.java:235) at com.sun.beans.TypeResolver.resolve(TypeResolver.java:172) at com.sun.beans.TypeResolver.resolveInClass(TypeResolver.java:93) at java.beans.FeatureDescriptor.getParameterTypes(FeatureDescriptor.java:387) at java.beans.MethodDescriptor.setMethod(MethodDescriptor.java:114) at java.beans.MethodDescriptor.<init>(MethodDescriptor.java:72) at java.beans.MethodDescriptor.<init>(MethodDescriptor.java:56) at java.beans.Introspector.getTargetMethodInfo(Introspector.java:1130) at java.beans.Introspector.getBeanInfo(Introspector.java:414) at java.beans.Introspector.getBeanInfo(Introspector.java:161) at org.springframework.beans.CachedIntrospectionResults.<init>(CachedIntrospectionResults.java:220) at org.springframework.beans.CachedIntrospectionResults.forClass(CachedIntrospectionResults.java:144) at org.springframework.beans.BeanWrapperImpl.getCachedIntrospectionResults(BeanWrapperImpl.java:252) at org.springframework.beans.BeanWrapperImpl.getPropertyDescriptors(BeanWrapperImpl.java:259) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.filterPropertyDescriptorsForDependencyCheck(AbstractAutowireCapableBeanFactory.java:1132) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:992) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472) ... 38 more 每次只要一执行这句:ApplicationContext application = new ClassPathXmlApplicationContext("beans.xml");就会报上述错误!! 请高手解答!!!

springboot的maven项目的注入失败的问题

//主启动器 package com.miaoshaproject; import com.miaoshaproject.dao.UserDOMapper; import com.miaoshaproject.dataobject.UserDO; import org.mybatis.spring.annotation.MapperScan; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import javax.annotation.Resource; @SpringBootApplication(scanBasePackages = {"com.miaoshaproject"}) @RestController @MapperScan("com.miaoshaproject.dao") public class App { @Resource private UserDOMapper userDOMapper; @RequestMapping("/") public String home(){ UserDO userDO = userDOMapper.selectByPrimaryKey(1); if(userDO==null){ return "用户对象不存在"; }else{ return userDO.getName(); } } public static void main( String[] args ) { System.out.println("Hello World!"); SpringApplication.run(App.class,args); } } ``` //Dao类文件 @Repository public interface UserDOMapper { UserDO selectByPrimaryKey(Integer id); } ``` ``` //mapper文件 <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.miaoshaproject.dao.UserDOMapper"> <resultMap id="BaseResultMap" type="com.miaoshaproject.dataobject.UserDO"> <!-- WARNING - @mbg.generated This element is automatically generated by MyBatis Generator, do not modify. This element was generated on Mon Apr 06 17:07:07 CST 2020. --> <id column="id" jdbcType="INTEGER" property="id" /> <result column="name" jdbcType="VARCHAR" property="name" /> <result column="gender" jdbcType="TINYINT" property="gender" /> <result column="age" jdbcType="INTEGER" property="age" /> <result column="telphone" jdbcType="VARCHAR" property="telphone" /> <result column="register-mode" jdbcType="VARCHAR" property="registerMode" /> <result column="third_party_id" jdbcType="VARCHAR" property="thirdPartyId" /> </resultMap> <sql id="Base_Column_List"> <!-- WARNING - @mbg.generated This element is automatically generated by MyBatis Generator, do not modify. This element was generated on Mon Apr 06 17:07:07 CST 2020. --> id, name, gender, age, telphone, register-mode, third_party_id </sql> <select id="selectByPrimaryKey" parameterType="java.lang.Integer" resultMap="BaseResultMap"> select <include refid="Base_Column_List" /> from user_info where id = #{id,jdbcType=INTEGER} </select> </mapper> ``` ``` //相关配置文件 mybatis.mapper-locations=classpath:mapping/UserDOMapper.xml,classpath:mapping/UserPasswordDOMapper.xml server.port=8090 spring.datasource.name=miaosha spring.datasource.url=jdbc:mysql://localhost:3306/miaosha?characterEnconding=utf8&amp;useSSL=true spring.data.cassandra.password=000000 spring.data.cassandra.username=root anagement.security.enabled=false #使用druid数据源 spring.datasource.type=com.alibaba.druid.pool.DruidDataSource spring.datasource.driverClassName=com.mysql.jdbc.Driver ``` ``` //错误代码 [main] INFO com.miaoshaproject.App - Starting App on DESKTOP-HNHSR91 with PID 19268 (C:\Users\hasee\IdeaProjects\miaosha\target\classes started by hasee in C:\Users\hasee\IdeaProjects\miaosha) [main] INFO com.miaoshaproject.App - No active profile set, falling back to default profiles: default [main] INFO org.springframework.context.annotation.AnnotationConfigApplicationContext - Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@c46bcd4: startup date [Wed Apr 08 11:20:25 CST 2020]; root of context hierarchy [main] INFO org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor - JSR-330 'javax.inject.Inject' annotation found and supported for autowiring [main] WARN org.springframework.context.annotation.AnnotationConfigApplicationContext - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'app': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userDOMapper' defined in file [C:\Users\hasee\IdeaProjects\miaosha\target\classes\com\miaoshaproject\dao\UserDOMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration': Unexpected exception during bean creation; nested exception is java.lang.TypeNotPresentException: Type org.apache.ibatis.mapping.DatabaseIdProvider not present [main] INFO org.springframework.boot.autoconfigure.logging.ConditionEvaluationReportLoggingListener - Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. [main] ERROR org.springframework.boot.SpringApplication - Application run failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'app': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userDOMapper' defined in file [C:\Users\hasee\IdeaProjects\miaosha\target\classes\com\miaoshaproject\dao\UserDOMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration': Unexpected exception during bean creation; nested exception is java.lang.TypeNotPresentException: Type org.apache.ibatis.mapping.DatabaseIdProvider not present at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:321) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1341) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:572) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:759) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:780) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412) at org.springframework.boot.SpringApplication.run(SpringApplication.java:333) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1277) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1265) at com.miaoshaproject.App.main(App.java:39) Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userDOMapper' defined in file [C:\Users\hasee\IdeaProjects\miaosha\target\classes\com\miaoshaproject\dao\UserDOMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration': Unexpected exception during bean creation; nested exception is java.lang.TypeNotPresentException: Type org.apache.ibatis.mapping.DatabaseIdProvider not present at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1436) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1323) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:572) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:204) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:514) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:485) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:619) at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:180) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:318) ... 16 more Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration': Unexpected exception during bean creation; nested exception is java.lang.TypeNotPresentException: Type org.apache.ibatis.mapping.DatabaseIdProvider not present at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:508) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:372) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1247) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1135) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1421) ... 29 more Caused by: java.lang.TypeNotPresentException: Type org.apache.ibatis.mapping.DatabaseIdProvider not present at sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreReflectionFactory.java:117) at sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:125) at sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49) at sun.reflect.generics.visitor.Reifier.reifyTypeArguments(Reifier.java:68) at sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:138) at sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49) at sun.reflect.generics.repository.ConstructorRepository.getParameterTypes(ConstructorRepository.java:94) at java.lang.reflect.Executable.getGenericParameterTypes(Executable.java:283) at java.lang.reflect.Constructor.getGenericParameterTypes(Constructor.java:234) at org.springframework.core.MethodParameter.getGenericParameterType(MethodParameter.java:423) at org.springframework.core.SerializableTypeWrapper$MethodParameterTypeProvider.getType(SerializableTypeWrapper.java:317) at org.springframework.core.SerializableTypeWrapper.forTypeProvider(SerializableTypeWrapper.java:137) at org.springframework.core.ResolvableType.forType(ResolvableType.java:1384) at org.springframework.core.ResolvableType.forMethodParameter(ResolvableType.java:1285) at org.springframework.core.ResolvableType.forMethodParameter(ResolvableType.java:1251) at org.springframework.beans.factory.config.DependencyDescriptor.getResolvableType(DependencyDescriptor.java:290) at org.springframework.beans.factory.support.GenericTypeAwareAutowireCandidateResolver.checkGenericTypeMatch(GenericTypeAwareAutowireCandidateResolver.java:76) at org.springframework.beans.factory.support.GenericTypeAwareAutowireCandidateResolver.isAutowireCandidate(GenericTypeAwareAutowireCandidateResolver.java:68) at org.springframework.beans.factory.annotation.QualifierAnnotationAutowireCandidateResolver.isAutowireCandidate(QualifierAnnotationAutowireCandidateResolver.java:147) at org.springframework.beans.factory.support.DefaultListableBeanFactory.isAutowireCandidate(DefaultListableBeanFactory.java:674) at org.springframework.beans.factory.support.DefaultListableBeanFactory.isAutowireCandidate(DefaultListableBeanFactory.java:631) at org.springframework.beans.factory.support.DefaultListableBeanFactory.isAutowireCandidate(DefaultListableBeanFactory.java:615) at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1287) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1098) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062) at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:818) at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:724) at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:197) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1267) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1124) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) ... 46 more Caused by: java.lang.ClassNotFoundException: org.apache.ibatis.mapping.DatabaseIdProvider at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreReflectionFactory.java:114) ... 77 more Process finished with exit code 1 ``` 这个问题困扰我很久了,在网上搜索了mapper文件重复或者换@Resource都没有解决,麻烦各位同学老师帮忙看看,谢谢! 本人在线等待大佬们的帮忙,比较急被卡很多天了。

springboot的maven项目的注入失败

``` ## //主控制器 package com.miaoshaproject; import com.miaoshaproject.dao.UserDOMapper; import com.miaoshaproject.dataobject.UserDO; import org.mybatis.spring.annotation.MapperScan; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import javax.annotation.Resource; /** * Hello world! * */ @SpringBootApplication(scanBasePackages = {"com.miaoshaproject"}) @RestController @MapperScan("com.miaoshaproject.dao") public class App { @Resource private UserDOMapper userDOMapper; @RequestMapping("/") public String home(){ UserDO userDO = userDOMapper.selectByPrimaryKey(1); if(userDO==null){ return "用户对象不存在"; }else{ return userDO.getName(); } } public static void main( String[] args ) { System.out.println("Hello World!"); SpringApplication.run(App.class,args); } } ``` ``` ## DAO package com.miaoshaproject.dao; import com.miaoshaproject.dataobject.UserDO; import org.springframework.stereotype.Repository; public interface UserDOMapper { UserDO selectByPrimaryKey(Integer id); } ``` ``` ## mapper.xml文件 <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.miaoshaproject.dao.UserDOMapper"> <resultMap id="BaseResultMap" type="com.miaoshaproject.dataobject.UserDO"> <!-- WARNING - @mbg.generated This element is automatically generated by MyBatis Generator, do not modify. This element was generated on Mon Apr 06 17:07:07 CST 2020. --> <id column="id" jdbcType="INTEGER" property="id" /> <result column="name" jdbcType="VARCHAR" property="name" /> <result column="gender" jdbcType="TINYINT" property="gender" /> <result column="age" jdbcType="INTEGER" property="age" /> <result column="telphone" jdbcType="VARCHAR" property="telphone" /> <result column="register-mode" jdbcType="VARCHAR" property="registerMode" /> <result column="third_party_id" jdbcType="VARCHAR" property="thirdPartyId" /> </resultMap> <sql id="Base_Column_List"> <!-- WARNING - @mbg.generated This element is automatically generated by MyBatis Generator, do not modify. This element was generated on Mon Apr 06 17:07:07 CST 2020. --> id, name, gender, age, telphone, register-mode, third_party_id </sql> <select id="selectByPrimaryKey" parameterType="java.lang.Integer" resultMap="BaseResultMap"> select <include refid="Base_Column_List" /> from user_info where id = #{id,jdbcType=INTEGER} </select> </mapper> ``` ``` ## 配置文件 mybatis.mapper-locations=classpath:mapping/UserDOMapper.xml,classpath:mapping/UserPasswordDOMapper.xml server.port=8090 spring.datasource.name=miaosha spring.datasource.url=jdbc:mysql://localhost:3306/miaosha?characterEnconding=utf8&amp;useSSL=true spring.data.cassandra.password=000000 spring.data.cassandra.username=root anagement.security.enabled=false #使用druid数据源 spring.datasource.type=com.alibaba.druid.pool.DruidDataSource spring.datasource.driverClassName=com.mysql.jdbc.Driver ``` ``` 错误代码 [main] INFO com.miaoshaproject.App - Starting App on DESKTOP-HNHSR91 with PID 17804 (C:\Users\hasee\IdeaProjects\miaosha\target\classes started by hasee in C:\Users\hasee\IdeaProjects\miaosha) [main] INFO com.miaoshaproject.App - No active profile set, falling back to default profiles: default [main] INFO org.springframework.context.annotation.AnnotationConfigApplicationContext - Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@1d8d30f7: startup date [Wed Apr 08 11:38:09 CST 2020]; root of context hierarchy [main] INFO org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor - JSR-330 'javax.inject.Inject' annotation found and supported for autowiring [main] WARN org.springframework.context.annotation.AnnotationConfigApplicationContext - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'app': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userDOMapper' defined in file [C:\Users\hasee\IdeaProjects\miaosha\target\classes\com\miaoshaproject\dao\UserDOMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration': Unexpected exception during bean creation; nested exception is java.lang.TypeNotPresentException: Type org.apache.ibatis.mapping.DatabaseIdProvider not present [main] INFO org.springframework.boot.autoconfigure.logging.ConditionEvaluationReportLoggingListener - Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. [main] ERROR org.springframework.boot.SpringApplication - Application run failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'app': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userDOMapper' defined in file [C:\Users\hasee\IdeaProjects\miaosha\target\classes\com\miaoshaproject\dao\UserDOMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration': Unexpected exception during bean creation; nested exception is java.lang.TypeNotPresentException: Type org.apache.ibatis.mapping.DatabaseIdProvider not present at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:321) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1341) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:572) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:759) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:780) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412) at org.springframework.boot.SpringApplication.run(SpringApplication.java:333) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1277) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1265) at com.miaoshaproject.App.main(App.java:39) Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userDOMapper' defined in file [C:\Users\hasee\IdeaProjects\miaosha\target\classes\com\miaoshaproject\dao\UserDOMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration': Unexpected exception during bean creation; nested exception is java.lang.TypeNotPresentException: Type org.apache.ibatis.mapping.DatabaseIdProvider not present at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1436) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1323) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:572) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:204) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:514) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:485) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:619) at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:180) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90) at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:318) ... 16 more Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration': Unexpected exception during bean creation; nested exception is java.lang.TypeNotPresentException: Type org.apache.ibatis.mapping.DatabaseIdProvider not present at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:508) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:372) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1247) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1135) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1421) ... 29 more Caused by: java.lang.TypeNotPresentException: Type org.apache.ibatis.mapping.DatabaseIdProvider not present at sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreReflectionFactory.java:117) at sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:125) at sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49) at sun.reflect.generics.visitor.Reifier.reifyTypeArguments(Reifier.java:68) at sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:138) at sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49) at sun.reflect.generics.repository.ConstructorRepository.getParameterTypes(ConstructorRepository.java:94) at java.lang.reflect.Executable.getGenericParameterTypes(Executable.java:283) at java.lang.reflect.Constructor.getGenericParameterTypes(Constructor.java:234) at org.springframework.core.MethodParameter.getGenericParameterType(MethodParameter.java:423) at org.springframework.core.SerializableTypeWrapper$MethodParameterTypeProvider.getType(SerializableTypeWrapper.java:317) at org.springframework.core.SerializableTypeWrapper.forTypeProvider(SerializableTypeWrapper.java:137) at org.springframework.core.ResolvableType.forType(ResolvableType.java:1384) at org.springframework.core.ResolvableType.forMethodParameter(ResolvableType.java:1285) at org.springframework.core.ResolvableType.forMethodParameter(ResolvableType.java:1251) at org.springframework.beans.factory.config.DependencyDescriptor.getResolvableType(DependencyDescriptor.java:290) at org.springframework.beans.factory.support.GenericTypeAwareAutowireCandidateResolver.checkGenericTypeMatch(GenericTypeAwareAutowireCandidateResolver.java:76) at org.springframework.beans.factory.support.GenericTypeAwareAutowireCandidateResolver.isAutowireCandidate(GenericTypeAwareAutowireCandidateResolver.java:68) at org.springframework.beans.factory.annotation.QualifierAnnotationAutowireCandidateResolver.isAutowireCandidate(QualifierAnnotationAutowireCandidateResolver.java:147) at org.springframework.beans.factory.support.DefaultListableBeanFactory.isAutowireCandidate(DefaultListableBeanFactory.java:674) at org.springframework.beans.factory.support.DefaultListableBeanFactory.isAutowireCandidate(DefaultListableBeanFactory.java:631) at org.springframework.beans.factory.support.DefaultListableBeanFactory.isAutowireCandidate(DefaultListableBeanFactory.java:615) at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1287) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1098) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062) at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:818) at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:724) at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:197) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1267) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1124) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) ... 46 more Caused by: java.lang.ClassNotFoundException: org.apache.ibatis.mapping.DatabaseIdProvider at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreReflectionFactory.java:114) ... 77 more Process finished with exit code 1 ``` 这个问题困扰我很久了,在网上搜索了mapper文件重复或者换@Resource都没有解决,麻烦各位同学老师帮忙看看,谢谢! 本人在线等待大佬们的帮忙,比较急被卡很多天了。

spirng+mybatis报错

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [spring-mybatis.xml]: Initialization of bean failed; nested exception is java.lang.reflect.MalformedParameterizedTypeException at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:547) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:681) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Source) 十二月 11, 2016 10:32:29 上午 org.apache.catalina.core.StandardContext start at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 严重: Error listenerStart at java.lang.Thread.run(Unknown Source) 十二月 11, 2016 10:32:29 上午 org.apache.catalina.core.StandardContext start Caused by: java.lang.reflect.MalformedParameterizedTypeException 严重: Context [] startup failed due to previous errors at sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl.validateConstructorArguments(Unknown Source) at sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl.<init>(Unknown Source) at sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl.make(Unknown Source) at sun.reflect.generics.factory.CoreReflectionFactory.makeParameterizedType(Unknown Source) at sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Unknown Source) at sun.reflect.generics.tree.ClassTypeSignature.accept(Unknown Source) at sun.reflect.generics.visitor.Reifier.visitArrayTypeSignature(Unknown Source) at sun.reflect.generics.tree.ArrayTypeSignature.accept(Unknown Source) at sun.reflect.generics.repository.ConstructorRepository.getParameterTypes(Unknown Source) at java.lang.reflect.Method.getGenericParameterTypes(Unknown Source) at java.beans.Introspector.getBeanInfo(Unknown Source) at org.springframework.beans.CachedIntrospectionResults.<init>(CachedIntrospectionResults.java:284) at org.springframework.beans.CachedIntrospectionResults.forClass(CachedIntrospectionResults.java:188) at org.springframework.beans.BeanWrapperImpl.getCachedIntrospectionResults(BeanWrapperImpl.java:327) at org.springframework.beans.BeanWrapperImpl.getPropertyDescriptors(BeanWrapperImpl.java:335) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.filterPropertyDescriptorsForDependencyCheck(AbstractAutowireCapableBeanFactory.java:1343) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.filterPropertyDescriptorsForDependencyCheck(AbstractAutowireCapableBeanFactory.java:1322) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1180) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) ... 57 more ``` ``` ``` ``` 下面是web.xml的文件 ``` <?xml version="1.0" encoding="UTF-8" ?> <web-app> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mybatis.xml</param-value> </context-param> <!--配置spring listener--> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 防止Spring内存溢出监听器 --> <listener> <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> </listener> <!--解决POST乱码问题--> <filter> <filter-name>Set Character Encoding</filter-name> <filter-class>com.jercy.common.SetEncodeFilter</filter-class> <init-param> <param-name>defaultencoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>Set Character Encoding</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!--springmvc前端控制器配置--> <servlet> <servlet-name>dispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app> ``` spring-mvc.xml <?xml version="1.0" encoding="UTF-8" ?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 自动扫描该包,使SpringMVC认为包下用了@controller注解的类是控制器 --> <context:component-scan base-package="com.weixin.controller" /> <mvc:annotation-driven /> <!-- 定义跳转的文件的前后缀 ,视图模式配置--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀,变成一个 可用的url地址 --> <property name="prefix" value="/WEB-INF/views/" /> <property name="suffix" value=".jsp" /> </bean> <!-- 配置文件上传,如果没有使用文件上传可以不用配置,当然如果不配,那么配置文件中也不必引入上传组件包 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- 默认编码 --> <property name="defaultEncoding" value="utf-8" /> <!-- 文件大小最大值 --> <property name="maxUploadSize" value="10485760000" /> <!-- 内存中的最大值 --> <property name="maxInMemorySize" value="40960" /> </bean> </beans> ``` ``` spring-mybatis.xml <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 自动扫描 --> <context:component-scan base-package="com.weixin" /> <!-- 引入配置文件 --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" p:location="classpath:config.properties"/> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${driver}" /> <property name="url" value="${url}" /> <property name="username" value="${username}" /> <property name="password" value="${password}" /> <!-- 初始化连接大小 --> <property name="initialSize" value="${initialSize}"></property> <!-- 连接池最大数量 --> <property name="maxActive" value="${maxActive}"></property> <!-- 连接池最大空闲 --> <property name="maxIdle" value="${maxIdle}"></property> <!-- 连接池最小空闲 --> <property name="minIdle" value="${minIdle}"></property> <!-- 获取连接最大等待时间 --> <property name="maxWait" value="${maxWait}"></property> </bean> <!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <!-- 自动扫描mapping.xml文件 --> <property name="mapperLocations" value="classpath:mapper/*.xml"></property> </bean> <!-- DAO接口所在包名,Spring会自动查找其下的类 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.weixin.mapper" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> </beans> ``` ``` 希望大神们帮助解决一下,谢谢啦。

在Go中,如何分割任何类型的slice / array / string?

<div class="post-text" itemprop="text"> <p>Guava has a <a href="http://docs.guava-libraries.googlecode.com/git/javadoc/com/google/common/collect/Lists.html#partition(java.util.List,%20int)" rel="nofollow">generic partition method</a> which can not directly be implemented in Go due to Go's lack of generics. Is there a workaround for this?</p> </div>

java.lang.ClassCastException异常

java.lang.ClassCastException: com.ysb.system.project.monitor.online.domain.OnlineSession cannot be cast to com.ysb.system.project.monitor.online.domain.OnlineSession ![图片说明](https://img-ask.csdn.net/upload/201907/26/1564123585_391342.png) 请问各位大神遇到过这样的强转问题吗?

django刚入门,创建博客的时候出现这个错误,求解决

![图片说明](https://img-ask.csdn.net/upload/201904/01/1554112752_11759.png) ![图片说明](https://img-ask.csdn.net/upload/201904/01/1554112854_18340.png) 具体代码如下 html文件应该没错 views.py: from django.shortcuts import render # Create your views here. from django.template import loader,Context from django.http import HttpResponse from blog.models import BlogPost def archive(request): posts = BlogPost.objects.all(); #@UndefinedVariable t = loader.get_template('archive.html') c = Context({'posts': posts}) return HttpResponse(t.render(c)) models.py: from django.db import models from django.contrib import admin # Create your models here. class BlogPost(models.Model): title = models.CharField(max_length = 150) content = models.TextField() timestamp = models.DateTimeField() class BlogPostAdmin(admin.ModelAdmin): list_display = ('title', 'content', 'timestamp') admin.site.register(BlogPost, BlogPostAdmin) settings.py: TEMPLATE_DEBUG = True ALLOWED_HOSTS = [] # Application definition INSTALLED_APPS = ( 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'blog' ) MIDDLEWARE_CLASSES = ( 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.auth.middleware.SessionAuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', 'django.middleware.security.SecurityMiddleware', ) ROOT_URLCONF = 'wangxiran.urls' WSGI_APPLICATION = 'wangxiran.wsgi.application' # Database # https://docs.djangoproject.com/en/dev/ref/settings/#databases DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', 'NAME':'wangxiran', 'USER':'root', 'PASSWORD':'Aa123456', 'HOST':'127.0.0.1', 'POST':'3306', } } # Internationalization # https://docs.djangoproject.com/en/dev/topics/i18n/ LANGUAGE_CODE = 'en-us' TIME_ZONE = 'Asia/Shanghai' USE_I18N = True USE_L10N = True USE_TZ = True # Static files (CSS, JavaScript, Images) # https://docs.djangoproject.com/en/dev/howto/static-files/ STATIC_URL = '/static/' urls.py: from django.conf.urls import patterns, include, url from django.contrib import admin admin.autodiscover() from blog.views import archive urlpatterns = patterns('', # Examples: # url(r'^$', 'wangxiran.views.home', name='home'), # url(r'^blog/', include('blog.urls')), url(r'^admin/', include(admin.site.urls)), url(r'^blog/', archive), ) 照着网上教材做的 但是就是出不来啊 求大佬们帮帮

在eclipse安装maven的问题

## 关于maven使用的问题。 当我刚安装完maven到eclipse, 在cmd里面 mvn -v 里也看得到安装的版本。 为什么在使用run AS Maven build的时候出现以下错误 Running com.infoplatform.colinsoft.ColinsoftApplicationTests Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.003 sec <<< FAILURE! - in com.infoplatform.colinsoft.ColinsoftApplicationTests initializationError(com.infoplatform.colinsoft.ColinsoftApplicationTests) Time elapsed: 0.002 sec <<< ERROR! java.lang.TypeNotPresentException: Type org.springframework.test.context.junit4.SpringRunner not present at sun.reflect.annotation.TypeNotPresentExceptionProxy.generateException(TypeNotPresentExceptionProxy.java:46) at sun.reflect.annotation.AnnotationInvocationHandler.invoke(AnnotationInvocationHandler.java:84) at com.sun.proxy.$Proxy2.value(Unknown Source) at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:86) at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59) at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26) at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59) at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:33) at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:283) at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:173) at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153) at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:128) at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:203) at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:155) at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103) Caused by: java.lang.ClassNotFoundException: org.springframework.test.context.junit4.SpringRunner at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreReflectionFactory.java:114) at sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:125) at sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49) at sun.reflect.annotation.AnnotationParser.parseSig(AnnotationParser.java:439) at sun.reflect.annotation.AnnotationParser.parseClassValue(AnnotationParser.java:420) at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:349) at sun.reflect.annotation.AnnotationParser.parseAnnotation2(AnnotationParser.java:286) at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:120) at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:72) at java.lang.Class.createAnnotationData(Class.java:3521) at java.lang.Class.annotationData(Class.java:3510) at java.lang.Class.getAnnotation(Class.java:3415) at org.apache.maven.surefire.common.junit4.JUnit4TestChecker.isValidJUnit4Test(JUnit4TestChecker.java:65) at org.apache.maven.surefire.common.junit4.JUnit4TestChecker.accept(JUnit4TestChecker.java:52) at org.apache.maven.surefire.util.DefaultScanResult.applyFilter(DefaultScanResult.java:97) at org.apache.maven.surefire.junit4.JUnit4Provider.scanClassPath(JUnit4Provider.java:222) at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:107) at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:203) at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:155) at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103) Results : Tests in error: ColinsoftApplicationTests.initializationError ? TypeNotPresent Type org.spring... Tests run: 1, Failures: 0, Errors: 1, Skipped: 0 [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 2.177 s [INFO] Finished at: 2017-12-06T14:36:41+08:00 [INFO] Final Memory: 19M/227M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.18.1:test (default-test) on project infoPlatFormServer: There are test failures. [ERROR] [ERROR] Please refer to G:\Workspace\infoPlatFormServer\target\surefire-reports for the individual test results. [ERROR] -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException **各位大神,小白求救。**

springboot,activiti,mybatis通用mapper集成?

求教 springboot集成activiti按照默认配置可以运行,但加入mybatis通用mapper后会出现如下的错误,求教该怎么配置呢: 启动错误: ~~~log org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'javax.persistence.EntityManagerFactory' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {} at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1493) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1104) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066) at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:835) at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741) at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:467) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066) at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:835) at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741) at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:467) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) at com.example.demo.Demo1Application.main(Demo1Application.java:12) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144) 6086 [main] DEBUG o.s.b.d.LoggingFailureAnalysisReporter - Application failed to start due to an exception org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'javax.persistence.EntityManagerFactory' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {} at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1493) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1104) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066) at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:835) at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741) at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:467) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066) at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:835) at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741) at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:467) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138) at 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org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) at 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