汪的爱琪 2023-07-22 15:26 采纳率: 67.5%

已结题

Mybatis整合Spring出错问题求解决方案

首先请先看文档结构

原理是dao层接口的finBookById(Integer id)到service层再到test/java中的@Test内显示出Book信息,即证明整合完成
现在出现的问题是显示

C:\Users\汪海洋\.jdks\corretto-17.0.7\bin\java.exe -ea -Didea.test.cyclic.buffer.size=1048576 "-javaagent:D:\IntelliJ IDEA 2023.1.4\lib\idea_rt.jar=56154:D:\IntelliJ IDEA 2023.1.4\bin" -Dfile.encoding=UTF-8 -classpath "D:\IntelliJ IDEA 2023.1.4\lib\idea_rt.jar;D:\IntelliJ IDEA 2023.1.4\plugins\junit\lib\junit5-rt.jar;D:\IntelliJ IDEA 2023.1.4\plugins\junit\lib\junit-rt.jar;C:\Users\汪海洋\Desktop\Test\target\test-classes;C:\Users\汪海洋\Desktop\Test\target\classes;C:\Users\汪海洋\.m2\repository\org\springframework\spring-context\5.3.19\spring-context-5.3.19.jar;C:\Users\汪海洋\.m2\repository\org\springframework\spring-aop\5.3.19\spring-aop-5.3.19.jar;C:\Users\汪海洋\.m2\repository\org\springframework\spring-beans\5.3.19\spring-beans-5.3.19.jar;C:\Users\汪海洋\.m2\repository\org\springframework\spring-core\5.3.19\spring-core-5.3.19.jar;C:\Users\汪海洋\.m2\repository\org\springframework\spring-jcl\5.3.19\spring-jcl-5.3.19.jar;C:\Users\汪海洋\.m2\repository\org\springframework\spring-expression\5.3.19\spring-expression-5.3.19.jar;C:\Users\汪海洋\.m2\repository\org\springframework\spring-tx\5.3.17\spring-tx-5.3.17.jar;C:\Users\汪海洋\.m2\repository\org\springframework\spring-jdbc\5.3.17\spring-jdbc-5.3.17.jar;C:\Users\汪海洋\.m2\repository\org\springframework\spring-webmvc\5.3.19\spring-webmvc-5.3.19.jar;C:\Users\汪海洋\.m2\repository\org\springframework\spring-web\5.3.19\spring-web-5.3.19.jar;C:\Users\汪海洋\.m2\repository\org\mybatis\mybatis\3.4.6\mybatis-3.4.6.jar;C:\Users\汪海洋\.m2\repository\com\github\pagehelper\pagehelper\5.3.3\pagehelper-5.3.3.jar;C:\Users\汪海洋\.m2\repository\com\github\jsqlparser\jsqlparser\4.5\jsqlparser-4.5.jar;C:\Users\汪海洋\.m2\repository\org\mybatis\mybatis-spring\2.0.7\mybatis-spring-2.0.7.jar;C:\Users\汪海洋\.m2\repository\mysql\mysql-connector-java\8.0.28\mysql-connector-java-8.0.28.jar;C:\Users\汪海洋\.m2\repository\com\google\protobuf\protobuf-java\3.11.4\protobuf-java-3.11.4.jar;C:\Users\汪海洋\.m2\repository\com\alibaba\druid\1.2.9\druid-1.2.9.jar;C:\Users\汪海洋\.m2\repository\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;C:\Users\汪海洋\.m2\repository\javax\servlet\javax.servlet-api\4.0.1\javax.servlet-api-4.0.1.jar;C:\Users\汪海洋\.m2\repository\javax\servlet\jsp\jsp-api\2.2\jsp-api-2.2.jar;C:\Users\汪海洋\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.12.2\jackson-core-2.12.2.jar;C:\Users\汪海洋\.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.12.2\jackson-databind-2.12.2.jar;C:\Users\汪海洋\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.12.2\jackson-annotations-2.12.2.jar;C:\Users\汪海洋\.m2\repository\log4j\log4j\1.2.17\log4j-1.2.17.jar;C:\Users\汪海洋\.m2\repository\org\springframework\spring-test\5.2.8.RELEASE\spring-test-5.2.8.RELEASE.jar;C:\Users\汪海洋\.m2\repository\junit\junit\4.12\junit-4.12.jar;C:\Users\汪海洋\.m2\repository\org\hamcrest\hamcrest-core\1.3\hamcrest-core-1.3.jar" com.intellij.rt.junit.JUnitStarter -ideVersion5 -junit4 BookServiceTest
7月 22, 2023 3:10:28 下午 org.springframework.test.context.support.AbstractTestContextBootstrapper getDefaultTestExecutionListenerClassNames
信息: Loaded default TestExecutionListener class names from location [META-INF/spring.factories]: [org.springframework.test.context.web.ServletTestExecutionListener, org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener, org.springframework.test.context.support.DependencyInjectionTestExecutionListener, org.springframework.test.context.support.DirtiesContextTestExecutionListener, org.springframework.test.context.transaction.TransactionalTestExecutionListener, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener, org.springframework.test.context.event.EventPublishingTestExecutionListener]
7月 22, 2023 3:10:28 下午 org.springframework.test.context.support.AbstractTestContextBootstrapper getTestExecutionListeners
信息: Using TestExecutionListeners: [org.springframework.test.context.web.ServletTestExecutionListener@4c762604, org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener@2641e737, org.springframework.test.context.support.DependencyInjectionTestExecutionListener@727803de, org.springframework.test.context.support.DirtiesContextTestExecutionListener@704921a5, org.springframework.test.context.transaction.TransactionalTestExecutionListener@df27fae, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener@24a35978, org.springframework.test.context.event.EventPublishingTestExecutionListener@16f7c8c1]

org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.experience.dao.BookMapper.findBookById

    at org.apache.ibatis.binding.MapperMethod$SqlCommand.<init>(MapperMethod.java:227)
    at org.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:49)
    at org.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:65)
    at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:58)
    at jdk.proxy2/jdk.proxy2.$Proxy22.findBookById(Unknown Source)
    at com.experience.service.BookServiceImpl.findBookById(BookServiceImpl.java:14)
    at BookServiceTest.findBookById(BookServiceTest.java:16)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:568)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74)
    at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84)
    at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
    at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)
    at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)
    at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)
    at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232)
    at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)

2023-07-22 15:10:29,698[SpringContextShutdownHook] INFO  [com.alibaba.druid.pool.DruidDataSource] - {dataSource-0} closing ...

进程已结束,退出代码-1

这是数据库内__

dao层接口__

package com.experience.dao;

import com.experience.entity.Book;
/**
 * @author 汪海洋
 */
public interface BookMapper {
    public Book findBookById(Integer id);
}

关于dao层接口的xml文件__


```xml
<?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.experience.dao.BookMapper">
    <select id="findBookById" parameterType="int" resultType="book">
        select * from book where id = #{id}
    </select>

</mapper>

**service层__**

```java
package com.experience.service;

import com.experience.entity.Book;

/**
 * @author 汪海洋
 */
public interface BookService {
    public Book findBookById(int id);
}

service层的实现类
__

package com.experience.service;

import com.experience.dao.BookMapper;
import com.experience.entity.Book;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class BookServiceImpl implements BookService {
    @Autowired
    private BookMapper bookMapper;
    @Override
    public Book findBookById(int id) {
        return bookMapper.findBookById(id);
    }
}

在src/test/java下新建的BookServiceTest类__

import com.experience.entity.Book;
import com.experience.service.BookService;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath:application-service.xml","classpath:application-dao.xml"})
public class BookServiceTest {
    @Autowired
    private BookService bookService;
    @Test
    public void findBookById(){
        Book book = bookService.findBookById(1);
        System.out.println(book.toString());
    }
}

下面是所有有关的配置
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.us</groupId>
    <artifactId>us</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.3.19</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>5.3.17</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.3.17</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.3.19</version>
        </dependency>

        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.6</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.github.pagehelper/pagehelper -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>5.3.3</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.github.pagehelper/pagehelper -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>5.3.3</version>
        </dependency>

        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.7</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.28</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.2.9</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>4.0.1</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.2</version>
        </dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.12.2</version>
        </dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.12.2</version>
        </dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.12.2</version>
        </dependency>

        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.2.8.RELEASE</version>
            <scope>test</scope>
        </dependency>

        <!-- https://mvnrepository.com/artifact/junit/junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

</project>

jdbc.properties
__

jdbc.driverClassName=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost/you_and_me?serverTimezone=UTC&\
  characterEncoding=utf-8&useUnicode=true&useSSL=false&allowPublicKeyRetrieval=true
jdbc.username=root
jdbc.password=1234

application-dao.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:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd">
<!--    引入属性文件-->
    <context:property-placeholder location="classpath:jdbc.properties"/>
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${jdbc.driverClassName}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
     </bean>
    <bean name="sqlSession" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.experience.dao"/>
     </bean>
</beans>

application-service.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:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd
">
    <context:component-scan base-package="com.experience.service"/>
</beans>

mybatis-config.xml配置

<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <properties resource="jdbc.properties"/>
    <settings>
        <setting name="cacheEnabled" value="true"/>
    </settings>
    <typeAliases>
        <package name="com.experience.entity"/>
    </typeAliases>
    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC"></transactionManager>
            <dataSource type="POOLED">
                <property name="driver" value="${mysql.driver}"/>
                <property name="url" value="${mysql.url}"/>
                <property name="username" value="${mysql.username}"/>
                <property name="password" value="${mysql.password}"/>
            </dataSource>
        </environment>
    </environments>
    <mappers>
        <mapper resource="mapper/bookMapper.xml"/>
    </mappers>
</configuration>

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专家-郭老师 Java领域新星创作者 2023-07-24 16:58
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少了个注解
@Repository
public interface BookMapper { }
如果以上没有用，就需要对照你的xml 里的路径是不是对应得上dao的接口

本回答被题主选为最佳回答 , 对您是否有帮助呢?

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