标签：inf mes uil 找不到 namespace scons std stc ping
依赖pom.xml
<properties>
<mybatis-spring-boot-starter.version>1.3.2</mybatis-spring-boot-starter.version>
</properties>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>${mybatis-spring-boot-starter.version}</version>
</dependency>
application.properties
# 实体类包路径 mybatis.type-aliases-package=com.combo.bean mybatis.mapper-locations=classpath:com.combo.mapper/*.xml
实体类bean
@Data @NoArgsConstructor @AllArgsConstructor public class User { @NonNull private int id; private String name; private String age; private String gender; private String address; }
mapper接口
@Mapper public interface UserMapper { //@Select("select * from user") //配置的话就不用下面的xml了 List<User> allUsers(); }
mapper.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.combo.mapper.UserMapper">
<select id="allUsers" resultType="com.combo.bean.User">
SELECT * FROM user
</select>
</mapper>
service接口
public interface UserService { String allUsers(); }
serviceimpl实现类
@Service public class UserServiceImpl implements UserService { @Autowired private UserMapper userMapper; @Override public String allUsers() { List<User> users = userMapper.allUsers(); return users.toString(); } }
controller类
@RestController public class TestController { @Autowired private UserService userService; @RequestMapping("hello") public String hello(){ return "hello world"; } @RequestMapping("allUsers") public String allUsers() { return userService.allUsers(); } }
启动类
@SpringBootApplication
//@MapperScan(value = "com.combo.mapper") 加入之后可以不用在mapper接口上加@mapper注解 必须有其一，否则会提示报错，找不到mapper的bean注入
@ComponentScan(value = {"com.combo.controller","com.combo.service"}) //扫描注解
public class TestDruidApplication {
public static void main(String[] args) {
SpringApplication.run(TestDruidApplication.class, args);
}
}
可能的报错和解决：
1.org.apache.ibatis.binding.BindingException: Invalid bound statement (not found)
在pom.xml加入
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
</resources>
</build>
http://localhost/allUsers 若下图则成功了
标签：inf mes uil 找不到 namespace scons std stc ping
原文地址：https://www.cnblogs.com/UBEING/p/12297183.html
