springboot 使用mybatis查询的示例代码

更新时间：2022年08月31日 15:18:58 作者：子岚天羽卿怜水

这篇文章主要介绍了springboot 使用mybatis查询功能，本文通过示例代码给大家介绍的非常详细，对大家的学习或工作具有一定的参考借鉴价值,需要的朋友可以参考下

示例1

项目结构

代码controller中 UserController.java

package com.example.demo1110.controller;

import com.example.demo1110.entity.User;
import com.example.demo1110.service.UserService;
import org.apache.ibatis.annotations.Param;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

@RestController
@RequestMapping("/user")
@CrossOrigin //解决跨域名获取
public class UserController {
    @Autowired
    private UserService userService;

    @GetMapping("/all")
    public List<User> getListUser(){
        return userService.listUser();
    }

    @GetMapping("/getId/id={id}")
    private User getId(@PathVariable("id") Integer id){
        return userService.queryById(id);
    }

    @PostMapping("/EditUser")
    private Map<String,Object> editUser(@RequestBody User user){
        System.out.println(user);
        HashMap<String,Object> map = new HashMap<>();
        try {
            userService.editUser(user);
            map.put("success",true);
            map.put("msg","修改员工成功");
        }catch (Exception e){
            e.printStackTrace();
            map.put("success",false);
            map.put("msg","修改员工失败");
        }
        return map;
    }

    @GetMapping("/getName")
    public List<User> getName(@Param("name") String name){
        return userService.queryByName(name);
    }

    @PostMapping("/addUser")
    public Map<String,Object> addUser(@RequestBody User user){
        HashMap<String,Object> map = new HashMap<>();
        try {
            userService.addUser(user);
            map.put("success",true);
            map.put("msg","添加员工成功");
        }catch (Exception e){
            e.printStackTrace();
            map.put("success",false);
            map.put("msg","添加用户失败");
        }
        return map;
    }

    @GetMapping("/deletUser/{id}")
    public  Map<String,Object> deletUser(@PathVariable("id") Integer id){
        System.out.println(id);
        HashMap<String,Object> map = new HashMap<>();
        try {
            userService.deleteUserById(id);
            map.put("success",true);
            map.put("msg","删除员工成功");
        }catch (Exception e){
            e.printStackTrace();
            map.put("success",false);
            map.put("msg","删除用户失败");
        }
        return map;
    }
}

entity中 User.java

package com.example.demo1110.entity;
import lombok.Data;
@Data
public class User {
    private int id;
    private String name;
    private int age;
    private String city;
}

mapper中 UserDao.java

package com.example.demo1110.mapper;
import com.example.demo1110.entity.User;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;
import java.util.List;
@Mapper
@Repository
public interface UserDao {
    //查询所有记录
    public List<User> listUser();
    //按id查询
    public User queryById(Integer id);
    //按姓名模糊查询
    public List<User> queryByName(String name);

    //保存用户
    public int addUser(User user);
    //根据员工id删除
    public int deleteUserById(Integer id);
    //修改员工信息
    public int editUser(User user);
}

service中 UserService.java

package com.example.demo1110.service;

import com.example.demo1110.entity.User;

import java.util.List;

public interface UserService {
    //查询所有记录
    public List<User> listUser();
    //按id查询
    public User queryById(Integer id);
    //按姓名模糊查询
    public List<User> queryByName(String name);

    //保存用户
    public boolean addUser(User user);

    //根据员工id删除
    public boolean deleteUserById(Integer id);

    //修改员工信息
    public boolean editUser(User user);
}

service impl中 UserServiceImpl.java

package com.example.demo1110.service.impl;

import com.example.demo1110.entity.User;
import com.example.demo1110.mapper.UserDao;
import com.example.demo1110.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class UserServiceImpl implements UserService {
    @Autowired
    private UserDao userDao;

    @Override
    public List<User> listUser() {
        return userDao.listUser();
    }

    @Override
    public User queryById(Integer id) {
        return userDao.queryById(id);
    }

    @Override
    public List<User> queryByName(String name) {
        return userDao.queryByName(name);
    }

    @Override
    public boolean addUser(User user) {
        int i = userDao.addUser(user);
        if(i > 0){
            return true;
        }else {
            return false;
        }
    }

    @Override
    public boolean deleteUserById(Integer id) {
        int i = userDao.deleteUserById(id);
        if(i > 0){
            return true;
        }else {
            return false;
        }
    }

    @Override
    public boolean editUser(User user) {
        int i = userDao.editUser(user);
        if(i > 0){
            return true;
        }else {
            return false;
        }
    }
    
}

主java文件 Demo1110Application.java

package com.example.demo1110;

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

@MapperScan("com.example.demo1110.mapper")
@SpringBootApplication
public class Demo1110Application {

    public static void main(String[] args) {
        SpringApplication.run(Demo1110Application.class, args);
    }

}

UserMapper.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.example.demo1110.mapper.UserDao">
    <select id="listUser" resultType="com.example.demo1110.entity.User">
        select * from user
    </select>

    <select id="queryById" parameterType="int" resultType="com.example.demo1110.entity.User">
        select * from user
        where id = #{id}
    </select>

    <select id="queryByName" parameterType="String" resultType="com.example.demo1110.entity.User">
        select * from user
        where username = #{name}
    </select>

    <insert id="addUser" parameterType="com.example.demo1110.entity.User">
        insert  into user values (#{id},#{username},#{age},#{city})
    </insert>

    <delete id="deleteEmployeeById" parameterType="int">
        delete from user where id = #{id}
    </delete>

    <update id="editEmployee" parameterType="com.example.demo1110.entity.User">
        update user
        set username = #{name},age = #{age},city = #{city}
        where id = #{id}
    </update>
</mapper>

application.yml

spring:
  datasource:
    url: jdbc:mysql://127.0.0.1:3306/mybatisdemo?characterEncoding=utf-8&useSSL=false
    username: root
    password: root
    driver-class-name: com.mysql.cj.jdbc.Driver
mybatis:
  mapper-locations: classpath*:mapper/*Mapper.xml
  type-aliases-package: com.example.demo1110.entity

数据SQL

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for user
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  `age` int(6) NOT NULL,
  `city` varchar(255) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES ('1', '小明', '18', '深圳');
INSERT INTO `user` VALUES ('2', '小明1', '18', '深圳');

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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.5.6</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo1110</artifactId>
    <version>1.0.0</version>
    <name>demo1110</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.2.0</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.9</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

示例2

项目结构

数据sql

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for user
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  `age` int(6) NOT NULL,
  `city` varchar(255) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES ('1', '小明', '18', '深圳');
INSERT INTO `user` VALUES ('2', '小明1', '18', '深圳');

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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.5.6</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo1110</artifactId>
    <version>1.0.0</version>
    <name>demo1110</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.2.0</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.9</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

application.yml

spring:
  datasource:
    url: jdbc:mysql://127.0.0.1:3306/mybatisdemo?characterEncoding=utf-8&useSSL=false
    username: root
    password: root
    driver-class-name: com.mysql.cj.jdbc.Driver
mybatis:
  mapper-locations: classpath*:mapper/*Mapper.xml
  type-aliases-package: com.example.demo1110.entity
#打印sql语句
##
#logging.level.com.example.demo1110.mapper=DEBUG
logging:
  level:
    com.example.demo1110.mapper: debug

Demo1110Application.java

package com.example.demo1110;

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

@MapperScan("com.example.demo1110.mapper")
@SpringBootApplication
public class Demo1110Application {

    public static void main(String[] args) {
        SpringApplication.run(Demo1110Application.class, args);
    }

}

entity ->User.java

package com.example.demo1110.entity;

import lombok.Data;

@Data
public class User {
    private int id;
    private String name;
    private int age;
    private String city;

    public User(Integer id, String name, Integer age) {
        this.id = id;
        this.name = name;
        this.age = age;
    }
    public User(){

    }

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

mapper -> UserMapper.java

package com.example.demo1110.mapper;


import com.example.demo1110.entity.User;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;

import java.util.List;

@Mapper
@Repository
public interface UserMapper {
    /*//查询所有记录
    public List<User> listUser();
    //按id查询
    public User queryById(Integer id);
    //按姓名模糊查询
    public List<User> queryByName(String name);

    //保存用户
    public int addUser(User user);
    //根据员工id删除
    public int deleteUserById(Integer id);
    //修改员工信息
    public int editUser(User user);*/
    /**
     * 查询全部s
     * @return
     */
    List<User> findAllUser();


    /**
     * 根据id查询
     * @param id
     * @return
     */
    User findUser(Integer id);


    /**
     * 新增
     * @param user
     */
    void insertUser(User user);


    /**
     * 根据id删除
     * @param id
     */
    void deleteUser(Integer id);


    /**
     * 更新
     * @param user
     */
    void updateUser(User user);
    /**
     * 批量删除
     * @param ids
     */

    void deleteUserByList(Integer[] ids);
}

service -> UserService.java

package com.example.demo1110.service;
import com.example.demo1110.entity.User;
import java.util.List;
public interface UserService {
    /*//查询所有记录
    public List<User> listUser();
    //按id查询
    public User queryById(Integer id);
    //按姓名模糊查询
    public List<User> queryByName(String name);
    //保存用户
    public boolean addUser(User user);
    //根据员工id删除
    public boolean deleteUserById(Integer id);
    //修改员工信息
    public boolean editUser(User user);*/
    /**
     * 查询全部
     * @return
     */
    List<User> findAll();
    /**
     * 根据id查询
     * @param id
     * @return
     */
    User findUserById(Integer id);
    /**
     * 新增
     * @param user
     */
    void  insertUser(User user);
    /**
     * 更新
     * @param user
     */
    void updateUser(User user);
    /**
     * 删除单个用户
     * @param id
     */
    void deleteUser(Integer id);
    void deleteUserByList(Integer[] ids);
}

service impl ->UserServiceImpl.java

package com.example.demo1110.service.impl;
import com.example.demo1110.entity.User;
import com.example.demo1110.mapper.UserMapper;
import com.example.demo1110.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class UserServiceImpl implements UserService {
    /*@Autowired
    private UserMapper userDao;
    @Override
    public List<User> listUser() {
        return userDao.listUser();
    }
    @Override
    public User queryById(Integer id) {
        return userDao.queryById(id);
    }
    @Override
    public List<User> queryByName(String name) {
        return userDao.queryByName(name);
    }
    @Override
    public boolean addUser(User user) {
        int i = userDao.addUser(user);
        if(i > 0){
            return true;
        }else {
            return false;
        }
    }
    @Override
    public boolean deleteUserById(Integer id) {
        int i = userDao.deleteUserById(id);
        if(i > 0){
            return true;
        }else {
            return false;
        }
    }
    @Override
    public boolean editUser(User user) {
        int i = userDao.editUser(user);
        if(i > 0){
            return true;
        }else {
            return false;
        }
    }*/
    @Autowired
    private UserMapper userMapper;
    @Override
    public User findUserById(Integer id) {
        return userMapper.findUser(id);
    }
    @Override
    public List<User> findAll() {
        return userMapper.findAllUser();
    }
    @Override
    public void insertUser(User user) {
        userMapper.insertUser(user);
    }
    @Override
    public void updateUser(User user) {
        userMapper.updateUser(user);
    }
    @Override
    public void deleteUser(Integer id) {
        userMapper.deleteUser(id);
    }
    @Override
    public void deleteUserByList(Integer[] ids) {
        userMapper.deleteUserByList(ids);
    }
}

controller ->UserController.java

package com.example.demo1110.controller;

import com.example.demo1110.entity.User;
import com.example.demo1110.service.UserService;
import org.apache.ibatis.annotations.Param;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

@RestController
@RequestMapping("/user")
@CrossOrigin //解决跨域名获取
public class UserController {
    /*@Autowired
    private UserService userService;

    @GetMapping("/all")
    public List<User> getListUser(){
        return userService.listUser();
    }

    @GetMapping("/getId/id={id}")
    private User getId(@PathVariable("id") Integer id){
        return userService.queryById(id);
    }

    @PostMapping("/EditUser")
    private Map<String,Object> editUser(@RequestBody User user){
        System.out.println(user);
        HashMap<String,Object> map = new HashMap<>();
        try {
            userService.editUser(user);
            map.put("success",true);
            map.put("msg","修改员工成功");
        }catch (Exception e){
            e.printStackTrace();
            map.put("success",false);
            map.put("msg","修改员工失败");
        }
        return map;
    }

    @GetMapping("/getName")
    public List<User> getName(@Param("name") String name){
        return userService.queryByName(name);
    }

    @PostMapping("/addUser")
    public Map<String,Object> addUser(@RequestBody User user){
        HashMap<String,Object> map = new HashMap<>();
        try {
            userService.addUser(user);
            map.put("success",true);
            map.put("msg","添加员工成功");
        }catch (Exception e){
            e.printStackTrace();
            map.put("success",false);
            map.put("msg","添加用户失败");
        }
        return map;
    }

    @GetMapping("/deletUser/{id}")
    public  Map<String,Object> deletUser(@PathVariable("id") Integer id){
        System.out.println(id);
        HashMap<String,Object> map = new HashMap<>();
        try {
            userService.deleteUserById(id);
            map.put("success",true);
            map.put("msg","删除员工成功");
        }catch (Exception e){
            e.printStackTrace();
            map.put("success",false);
            map.put("msg","删除用户失败");
        }
        return map;
    }*/
    @Autowired
    private UserService userService;

    @GetMapping("/{id}")
    public User findUserByid(@PathVariable("id") Integer id){
        return userService.findUserById(id);
    }

    @GetMapping("/findAll")
    public List<User> findAll(){
        return userService.findAll();
    }

    @PostMapping("/add")
    // // post转实体对象   只能用raw   application/json格式传参   key-value跟实体对应 controller用@RequestBody
    public void insertUser(@RequestBody  User user){
        userService.insertUser(user);
    }

    @PutMapping("/update")
    public void updateUser(@RequestBody  User user){
        userService.updateUser(user);
    }

    @DeleteMapping("/delete/{id}")
    public void deleteUser(@PathVariable("id") Integer id){
        userService.deleteUser(id);
    }

    @DeleteMapping("/deleteBatch")
    public void deleteBatch(@RequestBody Integer[] ids){
        userService.deleteUserByList(ids);
    }
}

controller ->IndexController.java

package com.example.demo1110.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController

public class IndexController {
    @RequestMapping ("/")
    String home () {
        return "hello world!!";
    }
}

resources mapper -> UserMapper.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.example.demo1110.mapper.UserMapper">
    <select id="listUser" resultType="com.example.demo1110.entity.User">
        select * from user
    </select>

    <select id="queryById" parameterType="int" resultType="com.example.demo1110.entity.User">
        select * from user
        where id = #{id}
    </select>

    <select id="queryByName" parameterType="String" resultType="com.example.demo1110.entity.User">
        select * from user
        where username = #{name}
    </select>

    <insert id="addUser" parameterType="com.example.demo1110.entity.User">
        insert  into user values (#{id},#{username},#{age},#{city})
    </insert>

    <delete id="deleteEmployeeById" parameterType="int">
        delete from user where id = #{id}
    </delete>

    <update id="editEmployee" parameterType="com.example.demo1110.entity.User">
        update user
        set username = #{name},age = #{age},city = #{city}
        where id = #{id}
    </update>
</mapper>-->
<mapper namespace="com.example.demo1110.mapper.UserMapper">
    <resultMap id="user" type="com.example.demo1110.entity.User">
        <id column="id" property="id"/>
        <result column="age" property="age"/>
        <result column="name" property="name"/>
    </resultMap>
    <select id="findUser" parameterType="int" resultMap="user">
        select * from user
        <where>
            <if test="_parameter!=null">
                and id = #{id}
            </if>
        </where>
    </select>

    <select id="findAllUser" resultMap="user">
        select * from user
    </select>

    <sql id="key">
        <trim suffixOverrides=",">
            <if test="id!=null">
                id,</if>
            <if test="name!=null">
                name,
            </if>

            <if test="age!=null">
                age,
            </if>
        </trim>
    </sql>
    <sql id="value">
        <trim suffixOverrides=",">
            <if test="id!=null">
                #{id},
            </if>
            <if test="name!=null">
                #{name},
            </if>
            <if test="age!=null">
                #{age},
            </if>
        </trim>
    </sql>

    <insert id="insertUser" parameterType="user">
        insert into user(<include refid="key"/>) values (<include refid="value"/>)
    </insert>

    <update id="updateUser" parameterType="user">
        UPDATE user
        <trim prefix="set" suffixOverrides=",">
            <if test="age!=null">age=#{age},</if>
            <if test="name!=null and name !=''">name=#{name},</if>
        </trim>
        WHERE id=#{id}

    </update>
    <delete id="deleteUser" parameterType="Integer">
        delete  from user where id = #{id}
    </delete>

    <delete id="deleteUserByList">
        delete  from user where id in
        <foreach collection="array" open="(" close=")" separator="," item="id">
            #{id}
        </foreach>
    </delete>

</mapper>

测试运行项目

http://127.0.0.1:8080/user/findAll

返回数据

[{"id":1,"name":"小明","age":18,"city":"深圳"},{"id":2,"name":"小明1","age":18,"city":"深圳"}]

源代码

链接: https://pan.baidu.com/s/11CVG6FyWrm67HR_ONVnVYw

提取码: tdfr

到此这篇关于springboot 使用mybatis查询的文章就介绍到这了,更多相关springboot mybatis查询内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！

您可能感兴趣的文章:

Java Swing的层次结构深入理解
这篇文章主要介绍了Java Swing的层次结构深入理解，具有很好的参考价值，希望对大家有所帮助。如有错误或未考虑完全的地方，望不吝赐教
2021-12-12
Maven Web项目使用Cargo插件实现自动化部署的详细步骤
cargo ，它是一组帮助用户实现自动化部署，操作Web容器的工具，并且几乎支持所有的Web容器，这篇文章主要介绍了Maven Web项目使用Cargo实现自动化部署,需要的朋友可以参考下
2023-02-02
Mybatis Interceptor 拦截器的实现
这篇文章主要介绍了Mybatis Interceptor 拦截器的实现，小编觉得挺不错的，现在分享给大家，也给大家做个参考。一起跟随小编过来看看吧
2018-12-12
Java基于正则表达式实现查找匹配的文本功能【经典实例】
这篇文章主要介绍了Java基于正则表达式实现查找匹配的文本功能,结合具体实例形式分析了java正则查找、字符串遍历、group分组相关操作技巧,需要的朋友可以参考下
2017-04-04
关于MyBatis Plus中使用or和and问题
这篇文章主要介绍了关于MyBatis Plus中使用or和and问题,需要的朋友可以参考下
2020-12-12
Java的接口调用时的权限验证功能的实现
这篇文章主要介绍了Java的接口调用时的权限验证功能的实现，文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值，需要的朋友们下面随着小编来一起学习学习吧
2020-11-11
MyBatis批量添加数据2种实现方法
这篇文章主要介绍了MyBatis批量添加数据2种实现方法,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下
2020-06-06
Java中使用MinIO的常用操作示例
这篇文章主要介绍了Java中MinIO的常用操作示例,MinIO 是一款基于Go语言发开的高性能、分布式的对象存储系统,客户端支持Java,Net,Python,Javacript, Golang语言,需要的朋友可以参考下
2024-01-01
Java中synchronized实现原理详解
这篇文章主要介绍了Java中synchronized实现原理详解，涉及synchronized实现同步的基础，Java对象头，Monitor，Mark Word，锁优化，自旋锁等相关内容，具有一定借鉴价值，需要的朋友可以参考下。
2017-11-11
Spring中WebDataBinder使用详解
这篇文章主要为大家详细介绍了Spring中WebDataBinder的使用，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
2017-07-07