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快速入门案例
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JeffLi1993
liqiangqiang
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package spring.boot.core;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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@SpringBootApplication
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public class QuickStartApplication {
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public static void main(String[] args) {
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SpringApplication.run(QuickStartApplication.class, args);
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}
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}
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package spring.boot.core.domain;
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import javax.persistence.Entity;
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import javax.persistence.GeneratedValue;
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import javax.persistence.Id;
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import java.io.Serializable;
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/**
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* 用户实体类
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*
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* Created by bysocket on 21/07/2017.
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*/
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@Entity
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public class User implements Serializable {
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/**
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* 编号
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*/
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@Id
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@GeneratedValue
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private Long id;
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/**
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* 名称
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*/
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private String name;
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/**
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* 年龄
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*/
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private Integer age;
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/**
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* 出生时间
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*/
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private String birthday;
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public Long getId() {
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return id;
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}
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public void setId(Long id) {
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this.id = id;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public Integer getAge() {
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return age;
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}
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public void setAge(Integer age) {
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this.age = age;
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}
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public String getBirthday() {
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return birthday;
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}
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public void setBirthday(String birthday) {
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this.birthday = birthday;
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}
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@Override
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public String toString() {
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return "User{" +
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"id=" + id +
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", name='" + name + '\'' +
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", age=" + age +
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", birthday=" + birthday +
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'}';
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}
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}
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package spring.boot.core.domain;
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import org.springframework.data.jpa.repository.JpaRepository;
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/**
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* 用户持久层操作接口
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*
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* Created by bysocket on 21/07/2017.
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*/
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public interface UserRepository extends JpaRepository<User, Long> {
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}
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package spring.boot.core.service;
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import spring.boot.core.domain.User;
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import java.util.List;
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/**
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* User 业务层接口
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*
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* Created by bysocket on 24/07/2017.
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*/
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public interface UserService {
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List<User> findAll();
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User insertByUser(User user);
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User update(User user);
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User delete(Long id);
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User findById(Long id);
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}
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package spring.boot.core.service.impl;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import spring.boot.core.domain.User;
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import spring.boot.core.domain.UserRepository;
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import spring.boot.core.service.UserService;
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import java.util.List;
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/**
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* User 业务层实现
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*
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* Created by bysocket on 24/07/2017.
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*/
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@Service
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public class UserServiceImpl implements UserService {
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private static final Logger LOGGER = LoggerFactory.getLogger(UserServiceImpl.class);
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@Autowired
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UserRepository userRepository;
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@Override
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public List<User> findAll() {
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return userRepository.findAll();
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}
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@Override
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public User insertByUser(User user) {
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LOGGER.info("新增用户：" + user.toString());
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return userRepository.save(user);
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}
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@Override
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public User update(User user) {
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LOGGER.info("更新用户：" + user.toString());
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return userRepository.save(user);
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}
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@Override
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public User delete(Long id) {
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User user = userRepository.findById(id).get();
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userRepository.delete(user);
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LOGGER.info("删除用户：" + user.toString());
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return user;
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}
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@Override
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public User findById(Long id) {
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LOGGER.info("获取用户 ID ：" + id);
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return userRepository.findById(id).get();
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}
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}
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package spring.boot.core.web;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.ModelMap;
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import org.springframework.web.bind.annotation.ModelAttribute;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestMethod;
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import spring.boot.core.domain.User;
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import spring.boot.core.service.UserService;
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/**
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* 用户控制层
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*
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* Created by bysocket on 24/07/2017.
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*/
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@Controller
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@RequestMapping(value = "/users") // 通过这里配置使下面的映射都在 /users
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public class UserController {
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@Autowired
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UserService userService; // 用户服务层
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/**
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* 获取用户列表
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* 处理 "/users" 的 GET 请求，用来获取用户列表
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* 通过 @RequestParam 传递参数，进一步实现条件查询或者分页查询
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*/
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@RequestMapping(method = RequestMethod.GET)
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public String getUserList(ModelMap map) {
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map.addAttribute("userList", userService.findAll());
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return "userList";
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}
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/**
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* 显示创建用户表单
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*
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*/
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@RequestMapping(value = "/create", method = RequestMethod.GET)
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public String createUserForm(ModelMap map) {
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map.addAttribute("user", new User());
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map.addAttribute("action", "create");
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return "userForm";
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}
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/**
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* 创建用户
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* 处理 "/users" 的 POST 请求，用来获取用户列表
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* 通过 @ModelAttribute 绑定参数，也通过 @RequestParam 从页面中传递参数
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*/
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@RequestMapping(value = "/create", method = RequestMethod.POST)
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public String postUser(@ModelAttribute User user) {
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userService.insertByUser(user);
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return "redirect:/users/";
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}
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/**
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* 显示需要更新用户表单
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* 处理 "/users/{id}" 的 GET 请求，通过 URL 中的 id 值获取 User 信息
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* URL 中的 id ，通过 @PathVariable 绑定参数
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*/
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@RequestMapping(value = "/update/{id}", method = RequestMethod.GET)
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public String getUser(@PathVariable Long id, ModelMap map) {
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map.addAttribute("user", userService.findById(id));
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map.addAttribute("action", "update");
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return "userForm";
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}
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/**
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* 处理 "/users/{id}" 的 PUT 请求，用来更新 User 信息
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*
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*/
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@RequestMapping(value = "/update", method = RequestMethod.POST)
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public String putUser(@ModelAttribute User user) {
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userService.update(user);
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return "redirect:/users/";
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}
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/**
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* 处理 "/users/{id}" 的 GET 请求，用来删除 User 信息
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*/
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@RequestMapping(value = "/delete/{id}", method = RequestMethod.GET)
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public String deleteUser(@PathVariable Long id) {
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userService.delete(id);
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return "redirect:/users/";
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}
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}
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## 是否显示 SQL 语句
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spring.jpa.show-sql=true
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/* contentDiv */
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.contentDiv {padding:20px 60px;}
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BIN
chapter-2-spring-boot-quick-start/src/main/resources/static/images/favicon.ico
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BIN
chapter-2-spring-boot-quick-start/src/main/resources/static/images/favicon.ico
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<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<script type="text/javascript" th:src="@{https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js}"></script>
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<link th:href="@{https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css}" rel="stylesheet"/>
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<link th:href="@{/css/default.css}" rel="stylesheet"/>
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<link rel="icon" th:href="@{/images/favicon.ico}" type="image/x-icon"/>
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<meta charset="UTF-8"/>
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<title>用户管理</title>
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</head>
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<body>
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<div class="contentDiv">
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<h5> 《 Spring Boot 2.x 核心技术实战》第二章快速入门案例</h5>
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<legend>
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<strong>用户管理</strong>
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</legend>
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<form th:action="@{/users/{action}(action=${action})}" method="post" class="form-horizontal">
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<input type="hidden" name="id" th:value="${user.id}"/>
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<div class="form-group">
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<label for="user_name" class="col-sm-2 control-label">名称</label>
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<div class="col-xs-4">
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<input type="text" class="form-control" id="user_name" name="name" th:value="${user.name}" />
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</div>
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</div>
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<div class="form-group">
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<label for="user_age" class="col-sm-2 control-label">年龄:</label>
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<div class="col-xs-4">
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<input type="text" class="form-control" id="user_age" name="age" th:value="${user.age}"/>
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</div>
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</div>
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<div class="form-group">
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<label for="user_birthday" class="col-sm-2 control-label">出生日期:</label>
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<div class="col-xs-4">
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<input type="date" class="form-control" id="user_birthday" name="birthday" th:value="${user.birthday}"/>
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</div>
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</div>
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<div class="form-group">
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<div class="col-sm-offset-2 col-sm-10">
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<input class="btn btn-primary" type="submit" value="提交"/>
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<input class="btn" type="button" value="返回" onclick="history.back()"/>
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</div>
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</div>
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</form>
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</div>
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</body>
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</html>
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<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<script type="text/javascript" th:src="@{https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js}"></script>
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<link th:href="@{https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css}" rel="stylesheet"/>
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<link th:href="@{/css/default.css}" rel="stylesheet"/>
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<link rel="icon" th:href="@{/images/favicon.ico}" type="image/x-icon"/>
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<meta charset="UTF-8"/>
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<title>用户列表</title>
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</head>
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<body>
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<div class="contentDiv">
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<h5> 《 Spring Boot 2.x 核心技术实战》第二章快速入门案例</h5>
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<table class="table table-hover table-condensed">
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<legend>
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<strong>用户列表</strong>
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</legend>
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<thead>
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<tr>
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<th>用户编号</th>
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<th>名称</th>
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<th>年龄</th>
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<th>出生时间</th>
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<th>管理</th>
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</tr>
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</thead>
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<tbody>
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<tr th:each="user : ${userList}">
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<th scope="row" th:text="${user.id}"></th>
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<td><a th:href="@{/users/update/{userId}(userId=${user.id})}" th:text="${user.name}"></a></td>
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<td th:text="${user.age}"></td>
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<td th:text="${user.birthday}"></td>
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<td><a class="btn btn-danger" th:href="@{/users/delete/{userId}(userId=${user.id})}">删除</a></td>
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</tr>
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</tbody>
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</table>
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<div><a class="btn btn-primary" href="/users/create" role="button">创建用户</a></div>
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</div>
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</body>
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</html>
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