springboot-jdbc-templete init

Author: Tellsea

springboot-jdbc-templete/doc/images/0.png

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+/*
+ Navicat Premium Data Transfer
+
+ Source Server         : localhost
+ Source Server Type    : MySQL
+ Source Server Version : 50713
+ Source Host           : localhost:3306
+ Source Schema         : springboot-jdbc-templete
+
+ Target Server Type    : MySQL
+ Target Server Version : 50713
+ File Encoding         : 65001
+
+ Date: 15/06/2019 13:37:46
+*/
+
+SET NAMES utf8mb4;
+SET FOREIGN_KEY_CHECKS = 0;
+
+-- ----------------------------
+-- Table structure for tb_user
+-- ----------------------------
+DROP TABLE IF EXISTS `tb_user`;
+CREATE TABLE `tb_user`  (
+  `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
+  `username` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '用户名',
+  `password` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '密码',
+  `ctime` datetime(0) NULL DEFAULT NULL COMMENT '创建时间',
+  PRIMARY KEY (`id`) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 10 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
+
+-- ----------------------------
+-- Records of tb_user
+-- ----------------------------
+INSERT INTO `tb_user` VALUES (4, 'tellsea', '654321', '2019-06-15 13:23:22');
+INSERT INTO `tb_user` VALUES (5, 'tellsea', '123456', '2019-06-15 13:24:33');
+INSERT INTO `tb_user` VALUES (6, 'tellsea', '123456', '2019-06-15 13:25:35');
+INSERT INTO `tb_user` VALUES (7, 'tellsea', '123456', '2019-06-15 13:27:23');
+INSERT INTO `tb_user` VALUES (8, 'tellsea', '123456', '2019-06-15 13:27:23');
+
+SET FOREIGN_KEY_CHECKS = 1;

springboot-jdbc-templete/doc/images/1.png

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+<?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>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.1.3.RELEASE</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>cn.tellsea</groupId>
+    <artifactId>springboot-jdbc-templete</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>springboot-jdbc-templete</name>
+    <description>Demo project for Spring Boot</description>
+
+    <properties>
+        <java.version>1.8</java.version>
+    </properties>
+
+    <dependencies>
+        <!-- spring boot -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <!-- jdbc -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-jdbc</artifactId>
+        </dependency>
+
+        <!-- 数据库驱动，我是MySQL5.7，所以使用5.1.x的驱动，如果你是MySQL8，则改成8.0.x的版本 -->
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>5.1.46</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.8</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

springboot-jdbc-templete/doc/images/2.png

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+package cn.tellsea;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpringbootJdbcTempleteApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringbootJdbcTempleteApplication.class, args);
+    }
+
+}

springboot-jdbc-templete/doc/images/3.png

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+package cn.tellsea.bean;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.Date;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class User {
+
+    private Long id;
+
+    private String username;
+
+    private String password;
+
+    private Date ctime;
+}

springboot-jdbc-templete/doc/images/4.png

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+package cn.tellsea.controller;
+
+import cn.tellsea.bean.User;
+import cn.tellsea.service.UserService;
+import cn.tellsea.utils.ResponseResult;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/user")
+public class UserController {
+
+    @Autowired
+    private UserService userService;
+
+    /**
+     * 根据id查询用户
+     *
+     * @param id
+     * @return
+     */
+    @GetMapping("/get/{id}")
+    public ResponseResult getUserById(@PathVariable(value = "id") Long id) {
+        User user = userService.getUserById(id);
+        if (user == null) {
+            return new ResponseResult(200, "查询结果为空", null);
+        }
+        return new ResponseResult(200, "查询成功", user);
+    }
+
+    /**
+     * 查询用户列表
+     *
+     * @return
+     */
+    @GetMapping("/list")
+    public ResponseResult getUserList() {
+        List<User> list = userService.getUserList();
+        if (list == null || list.isEmpty()) {
+            return new ResponseResult(200, "查询结果为空", null);
+        }
+        return new ResponseResult(200, "查询成功", list);
+    }
+
+    /**
+     * 新增用户
+     *
+     * @param user
+     * @return
+     */
+    @PostMapping("/add")
+    public ResponseResult add(@RequestBody User user) {
+        int count = userService.add(user);
+        if (count == 0) {
+            return new ResponseResult(500, "新增失败", null);
+        }
+        return new ResponseResult(200, "新增成功", null);
+    }
+
+    /**
+     * 根据id删除用户
+     *
+     * @param id
+     * @return
+     */
+    @GetMapping("/delete/{id}")
+    public ResponseResult delete(@PathVariable(value = "id") Long id) {
+        int count = userService.delete(id);
+        if (count == 0) {
+            return new ResponseResult(500, "删除失败", null);
+        }
+        return new ResponseResult(200, "删除成功", null);
+    }
+
+    /**
+     * 根据id修改用户信息
+     *
+     * @param user
+     * @return
+     */
+    @PostMapping("/update")
+    public ResponseResult update(@RequestBody User user) {
+        int count = userService.update(user);
+        if (count == 0) {
+            return new ResponseResult(500, "更新失败", null);
+        }
+        return new ResponseResult(200, "更新成功", null);
+    }
+}

springboot-jdbc-templete/doc/images/5.png

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+package cn.tellsea.dao;
+
+import cn.tellsea.bean.User;
+
+import java.util.List;
+
+public interface UserDao {
+
+    User getUserById(Long id);
+
+    List<User> getUserList();
+
+    int add(User user);
+
+    int update(User user);
+
+    int delete(Long id);
+}

springboot-jdbc-templete/doc/images/qq-group.png

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+package cn.tellsea.dao.impl;
+
+import cn.tellsea.bean.User;
+import cn.tellsea.dao.UserDao;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.jdbc.core.BeanPropertyRowMapper;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Repository;
+
+import java.util.Date;
+import java.util.List;
+
+@Repository // 用于标注数据访问组件
+public class UserDaoImpl implements UserDao {
+
+    @Autowired
+    private JdbcTemplate jdbcTemplate;
+
+    @Override
+    public User getUserById(Long id) {
+        List<User> list = jdbcTemplate.query("select * from tb_user where id = ?", new Object[]{id}, new BeanPropertyRowMapper(User.class));
+        if (list != null && list.size() > 0) {
+            return list.get(0);
+        } else {
+            return null;
+        }
+    }
+
+    @Override
+    public List<User> getUserList() {
+        List<User> list = jdbcTemplate.query("select * from tb_user", new Object[]{}, new BeanPropertyRowMapper(User.class));
+        if (list != null && list.size() > 0) {
+            return list;
+        } else {
+            return null;
+        }
+    }
+
+    @Override
+    public int add(User user) {
+        return jdbcTemplate.update("insert into tb_user(username, password, ctime) values(?, ?, ?)",
+                user.getUsername(), user.getPassword(), new Date());
+    }
+
+    @Override
+    public int update(User user) {
+        return jdbcTemplate.update("update tb_user SET username = ? , password = ? WHERE id=?",
+                user.getUsername(), user.getPassword(), user.getId());
+    }
+
+    @Override
+    public int delete(Long id) {
+        return jdbcTemplate.update("delete from tb_user where id = ? ", id);
+    }
+
+}

springboot-jdbc-templete/doc/sql/springboot-jdbc-templete.sql

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+package cn.tellsea.service;
+
+import cn.tellsea.bean.User;
+
+import java.util.List;
+
+public interface UserService {
+
+    User getUserById(Long id);
+
+    List<User> getUserList();
+
+    int add(User user);
+
+    int update(User user);
+
+    int delete(Long id);
+}

springboot-jdbc-templete/pom.xml

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+package cn.tellsea.service.impl;
+
+import cn.tellsea.bean.User;
+import cn.tellsea.dao.UserDao;
+import cn.tellsea.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 User getUserById(Long id) {
+        return userDao.getUserById(id);
+    }
+
+    @Override
+    public List<User> getUserList() {
+        return userDao.getUserList();
+    }
+
+    @Override
+    public int add(User user) {
+        return userDao.add(user);
+    }
+
+    @Override
+    public int update(User user) {
+        return userDao.update(user);
+    }
+
+    @Override
+    public int delete(Long id) {
+        return userDao.delete(id);
+    }
+}

springboot-jdbc-templete/src/main/java/cn/tellsea/SpringbootJdbcTempleteApplication.java

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+package cn.tellsea.utils;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class ResponseResult {
+
+    private Integer code;
+
+    private String msg;
+
+    private Object data;
+}

springboot-jdbc-templete/src/main/java/cn/tellsea/bean/User.java

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+server:
+  port: 8080
+spring:
+  datasource:
+    driver-class-name: com.mysql.jdbc.Driver
+    url: jdbc:mysql://localhost:3306/springboot-jdbc-templete?useSSL=false
+    username: root
+    password: 123456