数据文件
DROP TABLE IF EXISTS users;
CREATE TABLE users (
id INT ( 11 ) PRIMARY KEY AUTO_INCREMENT,
username VARCHAR ( 255 ) NOT NULL,
passwd VARCHAR ( 255 )
) ENGINE = INNODB DEFAULT CHARSET = utf8;
INSERT users VALUES ( NULL, '翠花', '123' );
INSERT users VALUES ( NULL, '王卫国', '123' );
INSERT users VALUES ( NULL, '李小花', '123' );
INSERT users VALUES ( NULL, '王二柱', '123' );
INSERT users VALUES ( NULL, '赵铁蛋', '123' );
需要引入的依赖
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
application.properties
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql///test
spring.datasource.username=root
spring.datasource.password=root
application.yml
spring:
datasource:
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql///test
username: root
password: root
User.java
package com.prvi.gabriel.springbootforjdbctemplate.entity;
/**
* Created with Intellij IDEA.
*
* @Author: Gabriel
* @Date: 2018-10-08
* @Desciption:
*/
public class User {
private long id;
private String username;
private String password;
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Override
public String toString() {
return "User{" +
"id=" + id +
", username='" + username + '\'' +
", password='" + password + '\'' +
'}';
}
}
UserController.java
package com.prvi.gabriel.springbootforjdbctemplate.controller;
import com.prvi.gabriel.springbootforjdbctemplate.entity.User;
import com.prvi.gabriel.springbootforjdbctemplate.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
/**
* Created with Intellij IDEA.
*
* @Author: Gabriel
* @Date: 2018-10-08
* @Desciption:
*/
@RestController
@RequestMapping("/users")
public class UserController {
@Autowired
private UserService userService;
@RequestMapping(name = "/",method = RequestMethod.GET)
public List<User> usersList(){
List<User> users = null;
return userService.findUsers();
}
@RequestMapping(value = "/{id}",method = RequestMethod.GET)
public User getUserById(@PathVariable long id){
return userService.findUserById(id);
}
@RequestMapping(name = "/",method = RequestMethod.POST,produces = "text/plain;charset=utf-8")
public String addUser(User user){
System.out.println(user);
if(userService.saveUser(user) > 0 ){
return "新增成功";
}else{
return "新增失败";
}
}
@RequestMapping(name = "/",method = RequestMethod.PUT)
public String updateUserById(User user){
if(userService.updateUser(user) > 0 ){
return "修改成功";
}else{
return "修改失败";
}
}
@RequestMapping(value = "/{id}",method = RequestMethod.DELETE)
public String deleteUserById(@PathVariable long id){
if(userService.delUserById(id) > 0 ){
return "删除成功";
}else{
return "删除失败";
}
}
}
UserService.java
package com.prvi.gabriel.springbootforjdbctemplate.service;
import com.prvi.gabriel.springbootforjdbctemplate.entity.User;
import java.util.List;
/**
* Created with Intellij IDEA.
*
* @Author: Gabriel
* @Date: 2018-10-08
* @Desciption:
*/
public interface UserService {
List<User> findUsers();
User findUserById(long id);
int saveUser(User user);
int delUserById(long id);
int updateUser(User user);
}
UserServiceImpl.java
package com.prvi.gabriel.springbootforjdbctemplate.service;
import com.prvi.gabriel.springbootforjdbctemplate.entity.User;
import com.prvi.gabriel.springbootforjdbctemplate.repository.UserRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
/**
* Created with Intellij IDEA.
*
* @Author: Gabriel
* @Date: 2018-10-08
* @Desciption:
*/
@Service
public class UserServiceImpl implements UserService {
@Autowired
private UserRepository repository;
@Transactional(readOnly = true)
@Override
public List<User> findUsers() {
return repository.findUsers();
}
@Transactional(readOnly = true)
@Override
public User findUserById(long id) {
return repository.findUserById(id);
}
@Transactional
@Override
public int saveUser(User user) {
return repository.saveUser(user);
}
@Transactional
@Override
public int delUserById(long id) {
return repository.delUserById(id);
}
@Transactional
@Override
public int updateUser(User user) {
return repository.updateUser(user);
}
}
UserRepository.java
package com.prvi.gabriel.springbootforjdbctemplate.repository;
import com.prvi.gabriel.springbootforjdbctemplate.entity.User;
import java.util.List;
/**
* Created with Intellij IDEA.
*
* @Author: Gabriel
* @Date: 2018-10-08
* @Desciption:
*/
public interface UserRepository {
List<User> findUsers();
User findUserById(long id);
int saveUser(User user);
int delUserById(long id);
int updateUser(User user);
}
UserRepositoryImpl.java
package com.prvi.gabriel.springbootforjdbctemplate.repository;
import com.prvi.gabriel.springbootforjdbctemplate.entity.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.PreparedStatementCreator;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Repository;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;
/**
* Created with Intellij IDEA.
*
* @Author: Gabriel
* @Date: 2018-10-08
* @Desciption:
*/
@Repository
public class UserRepositoryImpl implements UserRepository {
@Autowired
private JdbcTemplate jdbcTemplate;
@Override
public List<User> findUsers() {
return jdbcTemplate.query("select * from users",new UserMapper());
}
@Override
public User findUserById(long id) {
List<User> users = jdbcTemplate.query("select * from users where id = ?",new Object[]{id},new UserMapper());
User user = null;
if(users != null&&!users.isEmpty()){
user = users.get(0);
}
return user;
}
@Override
public int saveUser(User user) {
return jdbcTemplate.update("insert into users (username,password) values (?,?)",new Object[]{user.getUsername(),user.getPassword()});
}
@Override
public int delUserById(long id) {
return jdbcTemplate.update("delete from users where id = ?",new Object[]{id});
}
@Override
public int updateUser(User user) {
return jdbcTemplate.update("update users set username = ? , password = ? where id = ?",new Object[]{user.getUsername(),user.getPassword(),user.getId()});
}
}
class UserMapper implements RowMapper<User>{
@Override
public User mapRow(ResultSet resultSet, int i) throws SQLException {
User user = new User();
user.setId(resultSet.getLong("id"));
user.setUsername(resultSet.getString("username"));
user.setPassword(resultSet.getString("password"));
return user;
}
}
UserControllerTest.java
package com.prvi.gabriel.springbootforjdbctemplate.controller;
import org.junit.Before;
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.SpringJUnit4ClassRunner;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;
/**
* Created with Intellij IDEA.
*
* @Author: Gabriel
* @Date: 2018-10-08
* @Desciption:
*/
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest
public class UserControllerTest {
@Autowired
private WebApplicationContext context;
private MockMvc mockMvc;
@Before
public void setUp(){
mockMvc = MockMvcBuilders.webAppContextSetup(context).build();
}
@Test
public void usersList() throws Exception {
mockMvc.perform(MockMvcRequestBuilders.get("/users"));
}
@Test
public void getUserById() throws Exception {
mockMvc.perform(MockMvcRequestBuilders.get("/users/1"));
}
@Test
public void addUser() throws Exception {
mockMvc.perform(MockMvcRequestBuilders.post("/users").param("username","脚后跟").param("password","123"));
}
@Test
public void updateUserById() throws Exception {
mockMvc.perform(MockMvcRequestBuilders.put("/users").param("id","1").param("username","李海军").param("password","456"));
}
@Test
public void deleteUserById() throws Exception {
mockMvc.perform(MockMvcRequestBuilders.delete("/users/3"));
}
}
