spring boot 与jpa结合的过程中出现问题,但刚接触不知道问题在哪,麻烦大神指点,十分感谢
 @Controller
public class RedisController {
    @Autowired
    private RedisStatusService redisStatusService;

    @RequestMapping("")
    public String index(HttpServletResponse response) {
        //重定向到 /index
        return response.encodeRedirectURL("/index");
    }
    @RequestMapping(value = "/showredisstutas" , method = RequestMethod.GET)
    public String addCourse(HttpServletResponse response, HttpSession session,@RequestParam(value = "ipadd") String ipadd, @RequestParam(value = "port") String port){
        Iterable<RedisStatus> list=redisStatusService.getRedisStatusInfo(ipadd,port);
        session.setAttribute("statuslist",list);

        return response.encodeRedirectURL("/showRedisStatus");
    }
}

```public class RedisStatusService {
/* @Resource
RedisStatusDao redisStutasDao;
@Resource
RedisPortInfoDao redisPortInfoDao;*/
@Autowired
private RedisPortInfoDao redisPortInfoDao;

@Autowired
private RedisStatusDao redisStutasDao;
public Iterable<RedisStatus> getRedisStatusInfo(String ip,String port){
    Iterable<RedisStatus> list=null;
    try {
        RedisPortInfo  rpi=redisPortInfoDao.findByRedis_ipAndRedis_port(ip,port);
        if(rpi!=null){
            list = new ArrayList<RedisStatus>();
            list = redisStutasDao.findByRedis_idOrderByRecoder_timeDesc(rpi.getRedis_port_id());
        }else{
            list=null;
        }
    }catch (Exception ee){
        list=null;
    }
    return list;
}

}

```public interface RedisPortInfoDao extends CrudRepository<RedisPortInfo, String> {

    public RedisPortInfo findByRedis_ipAndRedis_port(String redis_ip,String redis_port);
}


@Entity
@Table(name = "redis_port_info")
public class RedisPortInfo {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "redis_port_id")
    private int redis_port_id;
    @Column(name = "redis_ip")
    private String  redis_ip;
    @Column(name = "redis_port")
    private int  redis_port;
    @Column(name = "redis_name")
    private String redis_name;
    @Column(name = "slowlog_lastid")
    private int  slowlog_lastid;

    public int getRedis_port_id() {
        return redis_port_id;
    }

    public void setRedis_port_id(int redis_port_id) {
        this.redis_port_id = redis_port_id;
    }

    public String getRedis_ip() {
        return redis_ip;
    }

    public void setRedis_ip(String redis_ip) {
        this.redis_ip = redis_ip;
    }

    public int getRedis_port() {
        return redis_port;
    }

    public void setRedis_port(int redis_port) {
        this.redis_port = redis_port;
    }

    public String getRedis_name() {
        return redis_name;
    }

    public void setRedis_name(String redis_name) {
        this.redis_name = redis_name;
    }

    public int getSlowlog_lastid() {
        return slowlog_lastid;
    }

    public void setSlowlog_lastid(int slowlog_lastid) {
        this.slowlog_lastid = slowlog_lastid;
    }
}

以下是报错信息

 org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.example.service.RedisStatusService com.example.controller.RedisController.redisStatusService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisStatusService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.example.dao.RedisPortInfoDao com.example.service.RedisStatusService.redisPortInfoDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisPortInfoDao': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property redis found for type RedisPortInfo!
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.example.service.RedisStatusService com.example.controller.RedisController.redisStatusService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisStatusService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.example.dao.RedisPortInfoDao com.example.service.RedisStatusService.redisPortInfoDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisPortInfoDao': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property redis found for type RedisPortInfo!
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisStatusService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.example.dao.RedisPortInfoDao com.example.service.RedisStatusService.redisPortInfoDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisPortInfoDao': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property redis found for type RedisPortInfo!
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.example.dao.RedisPortInfoDao com.example.service.RedisStatusService.redisPortInfoDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisPortInfoDao': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property redis found for type RedisPortInfo!
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisPortInfoDao': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property redis found for type RedisPortInfo!
Caused by: org.springframework.data.mapping.PropertyReferenceException: No property redis found for type RedisPortInfo!

麻烦大神帮忙找出问题

2个回答

RedisStatusService 类头部需要注入@Service,你这个明显是类未进行依赖注入。

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~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:261) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:266) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:189) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:141) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:115) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:77) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:153) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.internal.AbstractSharedSessionContract.getQueryPlan(AbstractSharedSessionContract.java:553) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:662) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:23) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_131] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_131] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_131] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_131] at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:350) ~[spring-orm-5.0.6.RELEASE.jar:5.0.6.RELEASE] at com.sun.proxy.$Proxy76.createQuery(Unknown Source) ~[na:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_131] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_131] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_131] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_131] at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:304) ~[spring-orm-5.0.6.RELEASE.jar:5.0.6.RELEASE] at com.sun.proxy.$Proxy76.createQuery(Unknown Source) ~[na:na] at com.neuqsoft.demo.repository.impl.PersonDaoImpl.findAll(PersonDaoImpl.java:52) ~[classes/:na] at com.neuqsoft.demo.repository.impl.PersonDaoImpl$$FastClassBySpringCGLIB$$7895840c.invoke(<generated>) ~[classes/:na] at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:746) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139) ~[spring-tx-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE] at com.neuqsoft.demo.repository.impl.PersonDaoImpl$$EnhancerBySpringCGLIB$$182f86eb.findAll(<generated>) ~[classes/:na] at com.neuqsoft.demo.service.PersonService.findAll(PersonService.java:50) ~[classes/:na] at com.neuqsoft.demo.controller.PersonController.getPseronList(PersonController.java:59) ~[classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_131] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_131] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_131] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_131] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.31.jar:8.5.31] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_131] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_131] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.31.jar:8.5.31] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_131] ``` 实体文件: ``` @Entity @Table(name = "person") public class Person { @Id @GeneratedValue(strategy = GenerationType.AUTO) private String id; @Column(name="name") private String name; @Column(name="sex") private String sex; @Column(name="tel") private String tel; @Column(name="address") private String address; @Column(name="age") private String age; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } public String getTel() { return tel; } public void setTel(String tel) { this.tel = tel; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } public String getAge() { return age; } public void setAge(String age) { this.age = age; } } ``` 数据库表: ![图片说明](https://img-ask.csdn.net/upload/201806/04/1528064584_339931.jpg) DAO文件: ``` package com.neuqsoft.demo.repository.impl; import java.util.List; import javax.persistence.EntityManager; import javax.persistence.PersistenceContext; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Repository; import com.neuqsoft.demo.entity.Person; import com.neuqsoft.demo.repository.PersonDao; @Repository public class PersonDaoImpl implements PersonDao { @Autowired @PersistenceContext private EntityManager entityManager; @Override public List<Person> findAll() { return this.entityManager.createQuery("select t from Person t").getResultList(); } } ``` Pom.xml ``` <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.neuqsoft</groupId> <artifactId>DemoJPAForSpringBoot</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <name>DemoJPAForSpringBoot</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.2.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!-- custom renw --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.1.0</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project> ``` application.properties: ``` #mysql #datasource spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.url=jdbc:mysql://localhost:3306/forspringboot?useSSL=false spring.datasource.username=root spring.datasource.password=1qaz!QAZ spring.jpa.show-sql= true ```
spring boot使用JPA,不采用 继承,运行报错求大神指导
![图片说明](https://img-ask.csdn.net/upload/201710/20/1508462378_809813.png)![![图片说明](https://img-ask.csdn.net/upload/201710/20/1508462407_199217.png)图片说明](https://img-ask.csdn.net/upload/201710/20/1508462394_242488.png) 目录结构如上图所示,请问我应该怎么配置使用,扫描包需要配置子目录吗? 启动异常如下,求大神指点: Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled. 2017-10-20 09:19:48.906 ERROR 13288 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter : *************************** APPLICATION FAILED TO START *************************** Description: Parameter 0 of constructor in org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration required a bean of type 'javax.sql.DataSource' that could not be found. - Bean method 'dataSource' not loaded because @ConditionalOnProperty (spring.datasource.jndi-name) did not find property 'jndi-name' - Bean method 'dataSource' not loaded because @ConditionalOnBean (types: org.springframework.boot.jta.XADataSourceWrapper; SearchStrategy: all) did not find any beans Action: Consider revisiting the conditions above or defining a bean of type 'javax.sql.DataSource' in your configuration.
spring boot和jpa结合时报错 麻烦大神帮忙调一下 并说明错在哪
https://pan.baidu.com/s/1hsy1mde 提取密码 p7ju 编码环境 Intel idea 本来也想把代码粘出来 可是太长了 真的是没办法 跳了一天了还是解决不了 麻烦大神帮忙 感激不尽 主要报错如下: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.example.service.RedisStatusService com.example.controller.RedisController.redisStatusService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisStatusService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.example.dao.RedisPortInfoDao com.example.service.RedisStatusService.redisPortInfoDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisPortInfoDao': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property redis found for type RedisPortInfo! Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisStatusService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.example.dao.RedisPortInfoDao com.example.service.RedisStatusService.redisPortInfoDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisPortInfoDao': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property redis found for type RedisPortInfo! Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisPortInfoDao': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property redis found for type RedisPortInfo! Caused by: org.springframework.data.mapping.PropertyReferenceException: No property redis found for type RedisPortInfo!
Spring Boot Jpa 多表关联查询问题
jpa单表分页查询很简单一个自带的findall方法就搞定。那么类似下面的多表关联分页查询该如何解决呢? SELECT t.id,t.co_name,e.experiment_code,e.experiment_name FROM tb_component t, tb_component_flow tf, tb_experiment_apply e WHERE t.id = tf.component_id AND tf.experiment_apply_id = e.id AND e.experiment_name LIKE '%实验%' _***跪求大佬们在线指点。**
spring boot,spring data jpa同一事务内修改不可见
目前我遇到这么个问题,在同一事务内,先saveAndFlush()了一条数据,在同一方法内,事务最终提交前,然后立刻查询此数据,但是并查不到。但是据我多年经验,同一事务内,尽管没提交,但是其修改在同一的当前的事务内应该是可见的才对呀。 困惑很久了,什么各种事务隔离性都试了,况且所谓事务隔离性,都是指不同事务间,我这是同一事务内都不可见,求求大侠们帮忙看看, 实在找不到解决思路了。谢谢大家,哎,没有C币,只能乞求大家了。 详细的代码和过程,我已经发在stackoverflow了,链接如下: [https://stackoverflow.com/questions/53449779/the-modifying-can-not-be-visible-in-the-same-transaction-in-spring-data-jpa-why/53455542#53455542](https://stackoverflow.com/questions/53449779/the-modifying-can-not-be-visible-in-the-same-transaction-in-spring-data-jpa-why/53455542#53455542 "")。
spring boot jpa 原生SQL
在使用jpa进行持久层操作时,使用原生SQL, @Modifying @Query(nativeQuery=true,value="UPDATE table SET name=?1 where id=?2") void modify(String name ,String id); ``` 我想知道,如果修改字段较多,该怎么写?
使用spring boot 中的jpa 设置懒加载无效
例如A表 ``` @OneToMany(mappedBy = "a", cascade = CascadeType.ALL, fetch = FetchType.LAZY) @JsonManagedReference private List<B> b = new ArrayList<>(); ``` B表 ``` @ManyToOne(fetch = FetchType.LAZY) @JsonBackReference private A a; ``` 这样findAll表A ,一样会把B的值加载出来. 请问一下有什么办法可以实现懒加载
spring boot + jpa访问数据库时报这个错,调用CrudRepository保存的时候
java.lang.NullPointerException: null at com.yd.cn.controller.SampleController.hello(SampleController.java:26) ~[classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_102] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_102] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_102] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_102] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221) ~[spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) ~[spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:817) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:731) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:968) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:859) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:622) ~[servlet-api.jar:na] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:844) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) ~[servlet-api.jar:na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230) ~[catalina.jar:8.5.11] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[catalina.jar:8.5.11] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-websocket.jar:8.5.11] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[catalina.jar:8.5.11] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[catalina.jar:8.5.11] at org.springframework.boot.actuate.autoconfigure.EndpointWebMvcAutoConfiguration$ApplicationContextHeaderFilter.doFilterInternal(EndpointWebMvcAutoConfiguration.java:237) ~[spring-boot-actuator-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[catalina.jar:8.5.11] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[catalina.jar:8.5.11] at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:112) ~[spring-boot-actuator-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[catalina.jar:8.5.11] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[catalina.jar:8.5.11] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[catalina.jar:8.5.11] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[catalina.jar:8.5.11] at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:87) ~[spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[catalina.jar:8.5.11] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[catalina.jar:8.5.11] at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77) ~[spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[catalina.jar:8.5.11] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[catalina.jar:8.5.11] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121) ~[spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[catalina.jar:8.5.11] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[catalina.jar:8.5.11] at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:103) ~[spring-boot-actuator-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) ~[catalina.jar:8.5.11] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) ~[catalina.jar:8.5.11] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) ~[catalina.jar:8.5.11] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [catalina.jar:8.5.11] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474) [catalina.jar:8.5.11] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [catalina.jar:8.5.11] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [catalina.jar:8.5.11] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [catalina.jar:8.5.11] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349) [catalina.jar:8.5.11] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783) [tomcat-coyote.jar:8.5.11] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-coyote.jar:8.5.11] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:798) [tomcat-coyote.jar:8.5.11] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1434) [tomcat-coyote.jar:8.5.11] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-coyote.jar:8.5.11] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_102] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_102] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-util.jar:8.5.11] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_102] ![图片说明](https://img-ask.csdn.net/upload/201708/22/1503380371_349769.png)![![图片说明](https://img-ask.csdn.net/upload/201708/22/1503380520_871584.png)图片说明](https://img-ask.csdn.net/upload/201708/22/1503380462_232925.png)
spring boot中找不到jsp
查了一天了也没查到问题,我配置了mvc的前缀和后缀,可就是返回不了jsp,是打的war包有问题吗, 还是缺少什么web的包,它只会报Circular view path [/main]: would dispatch back to the current handler URL [/main] again. Check your ViewResolver setup! (Hint: This may be the result of an unspecified view, due to default view name generation.),实在是查不到怎么解决了,照着springboot的官方web例子改也不行,直接返回了字符串而不是jsp页面,真心求各位帮帮忙。 yml配置文件里的源码 ``` mvc: view: prefix: /WEB-INF/jsp/ suffix: .jsp ``` gradle的依赖包引入 ``` compile 'org.springframework.boot:spring-boot-starter-data-jpa' compile 'org.springframework.boot:spring-boot-starter-freemarker' compile 'org.springframework.boot:spring-boot-starter-groovy-templates' compile 'org.springframework.boot:spring-boot-starter-jdbc' compile 'com.h2database:h2:1.4.190' compile 'com.alibaba:fastjson:1.2.7' compile 'com.google.guava:guava:18.0' compile 'org.springframework.boot:spring-boot-starter-redis' compile 'org.springframework.boot:spring-boot-starter-web' // compile 'org.springframework.boot:spring-boot-starter-jetty' compile 'org.springframework.boot:spring-boot-starter-tomcat' compile 'org.apache.tomcat.embed:tomcat-embed-jasper' compile 'javax.servlet:jstl' compile 'org.apache.directory.studio:org.apache.commons.lang:2.6' compile 'commons-io:commons-io:2.4' compile 'mysql:mysql-connector-java' testCompile 'org.springframework.boot:spring-boot-starter-test' compile 'org.springframework.boot:spring-boot-starter-data-rest' compile 'org.springframework.boot:spring-boot-configuration-processor' compile 'com.googlecode.xmemcached:xmemcached:2.0.0' ``` controller ``` @RequestMapping("/main") public ModelAndView welcome1() { logger.error("111111111111111") return new ModelAndView("/main") } ``` 日志能打出来,但是这个main.jsp找不到 war包的目录结构 ![图片说明](https://img-ask.csdn.net/upload/201604/27/1461742939_597620.png) 又去查了一下,视频和例子都在说引入 compile 'org.springframework.boot:spring-boot-starter-tomcat' compile 'org.apache.tomcat.embed:tomcat-embed-jasper' 两个依赖后,注释为@Controller,直接return字符串类型的jsp名就可以 可就是还是不行,ViewResolver好像没有设置
spring data jpa 拦截
spring boot项目,数据层spring data jpa 现在想在数据层把个人信息的敏感字段加密?因为项目过大,如何事项在查询语句执行之前增加拦截,将查询参数进行加密,及获取数据后将查询数据进行解密。
jpa 与spring boot结合,查询数据库 返回的列表中都是同一个实例
public interface RedisStatusDao extends CrudRepository<RedisStatus, Long> { public List<RedisStatus> findByRedisIdOrderByRecoderTimeDesc(Integer redis_id); } 这是我调用的方法但是在MySQL中写SQL语句,返回结果个数是对的,但是都是正确结果的第1条记录 SELECT * FROM `redis_status` WHERE redis_id=10 ORDER BY recoder_time DESC 结果很正常。经过调试redis_id这个参数也对,但就是结果内容有问题,请问这是怎么回事?该怎么解决?麻烦大家了
spring boot jpa 懒加载无效
代码如下,实体类未作任何特殊处理,只是主表关联子表,查询主表时自动将子表查询出来,懒加载配置没起作用。 @OneToOne(cascade = CascadeType.ALL,fetch = FetchType.LAZY ) @PrimaryKeyJoinColumn private BatchLogAmount batchLogAmount;
关于spring data jpa的问题.
spring boot 中通过爬虫爬取内容(中文),然后在mysql中插入数据。 我在本地测试是没问题的,一共13条数据都能采集并保存。但是我部署到云服务器的时候,只能保存11条数据; 我的save函数思路是这样的,如果数据库里没有该数据则插入数据到表中。 ```java if((gradeRepository.findByCourseName(grade.getCourseName()))==null){ 保存数据 } ``` 经过打印调试,发现少了的那两条记录的if的结果是false,也就是一开始数据库没有数据的情况下find返回的结果不为空……请问可能是什么原因?谢谢! 系统环境:腾讯云 Centos7.3, Mysql 5.6, Spring boot 1.5.6.RELEASE ![图片说明](https://img-ask.csdn.net/upload/201708/21/1503316702_263211.png)
使用spring data jpa出现的问题
今天在看慕课网关于jpa使用的视频,按照视频敲代码,可是却总报错,百度了下,说这错误是@Column和数据库的字段不对应,可是我连表都没有创建,这是什么情况? 报错如下: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [beans-new.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1589) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:554) 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.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1081) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:856) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83) at 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