问题遇到的现象和发生背景
问题相关代码，请勿粘贴截图
package com.cy.store;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
//MapperScan注解指定当前项目中的Mapper接口路径的位置，在项目启动的时候会自动加载所有的接口
@MapperScan({"com.cy.store.mapper"})
public class StoreApplication {
public static void main(String[] args) {
SpringApplication.run(StoreApplication.class, args);
}
}
package com.cy.store.mapper;
import com.cy.store.entity.User;
import com.cy.store.mapper.UserMapper;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import javax.annotation.Resource;
import javax.swing.*;
//@SpringBootTest : 注意 这个一个测试类，不会与项目一同打包
@RunWith(SpringRunner.class)
@SpringBootTest
// 现在之后springboot不用runwith 注解也可以 // (单元测试类不能启动) RunWith :表示启动这个单元测试类，需要传递一个参数，必须是SpringRunWith的实例类型
public class UserMapperTests {
//idea有检测的功能，接口是不能够直接创建Bean的，（动态代理技术来解决的）
//@Resource
@Autowired(required = false)
private UserMapper userMapper;
@Test
public void insert() {
User user= new User();
user.setUsername("shit");
user.setPassword("123456");
Integer rows=userMapper.insert(user);
System.out.println("rows="+rows);
}
@Test
public void findByUsername(){
String username = "hah";
User result = userMapper.findByUsername(username);
System.out.println(result);
}
}
运行结果及报错内容
org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.cy.store.mapper.UserMapper.insert
at org.apache.ibatis.binding.MapperMethod$SqlCommand.<init>(MapperMethod.java:235)
at org.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:53)
at org.apache.ibatis.binding.MapperProxy.lambda$cachedInvoker$0(MapperProxy.java:108)
at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660)
at org.apache.ibatis.util.MapUtil.computeIfAbsent(MapUtil.java:35)
at org.apache.ibatis.binding.MapperProxy.cachedInvoker(MapperProxy.java:95)
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:86)
at com.sun.proxy.$Proxy71.insert(Unknown Source)
at com.cy.store.mapper.UserMapperTests.insert(UserMapperTests.java:46)
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 org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
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:366)
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$4.run(ParentRunner.java:331)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
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$3.evaluate(ParentRunner.java:306)
at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
我的解答思路和尝试过的方法
我把resources文件下的mapper包名字改成 com.cy.store后能扫描到xml文件
貌似是mapperscan扫描到了resources文件
这是application.properties文件
spring.datasource.url=jdbc:mysql://localhost:3306/store?
useUnicode=true&characterEncoding=utf-8&serverTimezone=Asia/Shanghai
spring.datasource.username=root
spring.datasource.password=123456
mybatis.mapper-locations=classpath:mapper/*.xml
后面在pom.xml加了一个
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
也还是一样的问题
我想要达到的结果
Mapperscan能扫描到com.cy.store.mapper下的UserMapper文件 test能成功进行
