【Spring Boot实战与进阶】Controller的使用及获取请求参数的示例

@RequestMapping(value="/demo/java")
public String java() {
    return "java";
}

@RequestMapping(value="/demo/json")
public Map<String, Object> json() {
    Map<String, Object> map = new HashMap<>();
    map.put("sex", "男");
    map.put("name", Arrays.asList("tom","bob","tony"));

    return map;
}

@RequestMapping(value="/demo/getId")
public Map<String, Object> getId(Integer id) {
    Map<String, Object> map = new HashMap<>();
    map.put("id", id);
    
    return map;
}

@RequestMapping(value="/demo/login")
public Map<String, Object> login(
        @RequestParam(name = "user", required = false, defaultValue = "admin") String account,
        @RequestParam(name = "pass", required = false, defaultValue = "123456") String password) {
    Map<String, Object> map = new HashMap<>();
    map.put("account", account);
    map.put("password", password);

    return map;
}

@RequestMapping(value="/demo/bean")
public Map<String, Object> bean(User user) {
    Map<String, Object> map = new HashMap<>();
    map.put("account", user.getAccount());
    map.put("password", user.getPassword());

    return map;
}

@GetMapping("/user/{id}")
public void getUser(@PathVariable int id) {
    System.out.println("查询到了id="+id);
}

查询到了id=1

@PostMapping("/user")
public void saveUser(User user, Model model) {
    System.out.println(model);
    System.out.println("添加用户信息 user:"+ user);
}

{user=User{account='yunfan', password='123456'}, org.springframework.validation.BindingResult.user=org.springframework.validation.BeanPropertyBindingResult: 0 errors}
添加用户信息 user:User{account='yunfan', password='123456'}

@PostMapping("/updUser")
public void updateUser(@RequestBody User user) {
    System.out.println("修改用户信息"+user);
}

修改用户信息User{account='yunfan', password='123456'}