springboot整合mybatis(XML)

springboot整合mybatis(XML)

1.结构图：

 

2.pom.xml:

    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    4.0.0

    com.example
    springboot-mybatis
    0.0.1-SNAPSHOT
    jar

    springboot-mybatis
    Demo project for Spring Boot

    
        org.springframework.boot
        spring-boot-starter-parent
        1.5.10.RELEASE
         
    

    
        UTF-8
        UTF-8
        1.8
    

    
        
            org.springframework.boot
            spring-boot-starter-data-jpa
        
        
            org.springframework.boot
            spring-boot-starter-web
        
        
            org.mybatis.spring.boot
            mybatis-spring-boot-starter
            1.3.2
        

        
            mysql
            mysql-connector-java
            runtime
        
        
            org.springframework.boot
            spring-boot-starter-test
            test
        
        
            com.alibaba
            druid
            1.1.0
        
    

    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
            
        
    

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3.application.yml:

#公共配置与profiles选择无关
mybatis:
  typeAliasesPackage: com.demo.entity
  mapperLocations: classpath:mapper/*.xml

#开发配置
spring:
  datasource:
    url: jdbc:mysql://localhost:3306/test
    username: root
    password: root
    driver-class-name: com.mysql.jdbc.Driver
    # 使用druid数据源
    type: com.alibaba.druid.pool.DruidDataSource

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4.sql:

CREATE TABLE `user_t` (
  `id` int(10) NOT NULL AUTO_INCREMENT,
  `user_name` varchar(10) DEFAULT NULL,
  `password` varchar(10) DEFAULT NULL,
  `age` int(10) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `id` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=896 DEFAULT CHARSET=utf8

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5.UserMapper:

    
        
        
        
        
    
    
        id, user_name, password, age
    
    
        select
        
        from user_t
    
    
        select
        
        from user_t
        where id = #{id,jdbcType=INTEGER}
    
    
        delete from user_t
        where id = #{id,jdbcType=INTEGER}
    
    
        insert into user_t (id, user_name, password,
        age)
        values (#{id,jdbcType=INTEGER}, #{userName,jdbcType=VARCHAR}, #{password,jdbcType=VARCHAR},
        #{age,jdbcType=INTEGER})
    
    
        insert into user_t
        
            <if test="id != null" >
                id,
            if>
            <if test="userName != null" >
                user_name,
            if>
            <if test="password != null" >
                password,
            if>
            <if test="age != null" >
                age,
            if>
        
        
            <if test="id != null" >
                #{id,jdbcType=INTEGER},
            if>
            <if test="userName != null" >
                #{userName,jdbcType=VARCHAR},
            if>
            <if test="password != null" >
                #{password,jdbcType=VARCHAR},
            if>
            <if test="age != null" >
                #{age,jdbcType=INTEGER},
            if>
        
    
    
        update user_t
        
            <if test="userName != null" >
                user_name = #{userName,jdbcType=VARCHAR},
            if>
            <if test="password != null" >
                password = #{password,jdbcType=VARCHAR},
            if>
            <if test="age != null" >
                age = #{age,jdbcType=INTEGER},
            if>
        
        where id = #{id,jdbcType=INTEGER}
    
    
        update user_t
        set user_name = #{userName,jdbcType=VARCHAR},
        password = #{password,jdbcType=VARCHAR},
        age = #{age,jdbcType=INTEGER}
        where id = #{id,jdbcType=INTEGER}
    

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6.User:

package com.demo.entity;

public class User {
    private Integer id;

    private String userName;

    private String password;

    private Integer age;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName == null ? null : userName.trim();
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password == null ? null : password.trim();
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", userName='" + userName + '\'' +
                ", password='" + password + '\'' +
                ", age=" + age +
                '}';
    }
}

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7.UserDao:

package com.demo.dao;

import com.demo.entity.User;

import java.util.ArrayList;

public interface UserDao {
    int deleteByPrimaryKey(Integer id);

    int insert(User record);

    int insertSelective(User record);

    User selectByPrimaryKey(Integer id);

    int updateByPrimaryKeySelective(User record);

    int updateByPrimaryKey(User record);

    ArrayList selectAll();
}

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8.UserService:

package com.demo.service;

import com.demo.entity.User;

import java.util.ArrayList;

public interface UserService {
    public User getUserById(int userId);

    boolean addUser(User record);

    public Integer update(User record);

    ArrayList selectAll();

    boolean insert(User record);

    public Integer delete(int id);

}

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9.UserServiceImpl:

package com.demo.service;

import com.demo.dao.UserDao;
import com.demo.entity.User;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.ArrayList;

@Service("UserService")
public class UserServiceImpl implements UserService {

    @Resource
    private UserDao userDao;


    public User getUserById(int userId) {
        return userDao.selectByPrimaryKey(userId);
    }

    public boolean addUser(User record){
        boolean result = false;
        try {
            userDao.insertSelective(record);
            result = true;
        } catch (Exception e) {
            e.printStackTrace();
        }

        return result;
    }

    public Integer update(User record) {
        int result = 0;
        try{
            result =userDao.updateByPrimaryKeySelective(record);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }

    public ArrayList selectAll() {
        return userDao.selectAll();
    }

    public boolean insert(User record){
        boolean result = false;
        try {
            userDao.insert(record);
            result = true;
        } catch (Exception e) {
            e.printStackTrace();
        }

        return result;
    }

    public Integer delete(int id) {
        int result = 0;
        try {
            result = userDao.deleteByPrimaryKey(id);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }

}

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10.UserController:

package com.demo.controller;

import com.demo.entity.User;
import com.demo.service.UserService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.ArrayList;

@Controller
@RequestMapping("/user")
public class UserController {

    private Logger log = LoggerFactory.getLogger(UserController.class.getName());


    @Resource
    private UserService userService;

    @RequestMapping("/showUser")
    @ResponseBody
    public User toIndex(HttpServletRequest request, HttpServletResponse response){
        int userId = Integer.parseInt(request.getParameter("id"));
        User user = this.userService.getUserById(userId);
        return user;
    }

    @RequestMapping("/addUser")
    @ResponseBody
    public boolean toShowUser(HttpServletRequest request, HttpServletResponse response){
        int userId = Integer.parseInt(request.getParameter("id"));
        int age = Integer.parseInt(request.getParameter("age"));
        String userName = request.getParameter("userName");
        String password = request.getParameter("password");
        User user = new User();
        user.setUserName(userName);
        user.setAge(age);
        user.setId(userId);
        user.setPassword(password);
        boolean fag = this.userService.addUser(user);
        return fag;
    }

    @RequestMapping("/updateUser")
    @ResponseBody
    public Integer toUpdate(HttpServletRequest request, HttpServletResponse response){
        int userId = Integer.parseInt(request.getParameter("id"));
        String password = request.getParameter("password");
        User user = new User();
        user.setId(userId);
        user.setPassword(password);
        int fag = this.userService.update(user);
        return fag;
    }

    @RequestMapping("/selectall")
    @ResponseBody
    public ArrayList selectAll(HttpServletRequest request, HttpServletResponse response){
        ArrayList user = this.userService.selectAll();
        log.info(user.toString());
        return user;
    }

    @RequestMapping("/addUserSome")
    @ResponseBody
    public boolean toShowUserSome(HttpServletRequest request, HttpServletResponse response){
        int userId = Integer.parseInt(request.getParameter("id"));
        int age = Integer.parseInt(request.getParameter("age"));
        String userName = request.getParameter("userName");
        String password = request.getParameter("password");
        User user = new User();
        user.setUserName(userName);
        user.setAge(age);
        user.setId(userId);
        user.setPassword(password);
        boolean fag = this.userService.insert(user);
        return fag;
    }

    @RequestMapping("/deleteUser")
    @ResponseBody
    public String delete(HttpServletRequest request, HttpServletResponse response){
        int userId = Integer.parseInt(request.getParameter("id"));
        int count = this.userService.delete(userId);
        if(count >0 ) {
            return "成功删除" + count + "条信息！";
        }else {
            return "删除失败！";
        }
    }


}

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11.DemoApplication:

package com.demo;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
@MapperScan("com.demo.dao")
public class DemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }
}

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 12.访问url：

http://localhost:8080/user/showUser?id=11  ：  {"id":11,"userName":"程序员","password":"yiqq","age":22}

 

参考：Spring boot+Mybatis整合

转载于:https://www.cnblogs.com/heqiyoujing/p/9469785.html