中国建设银行吉林分行网站,做五金生意什么网站做比较好,网站建设方案书备案设计图,东莞易赢三种参数接收方式的区别#xff1a; RequestParam 用于接收url地址传参或表单传参 RequestBody 用于接收json数据 PathVariable 用于接收路径参数#xff0c;使用{参数名称}描述路径参数 package com.wu.controller;import com.wu.domain.User;
import org.springframework.s… 三种参数接收方式的区别 RequestParam 用于接收url地址传参或表单传参 RequestBody 用于接收json数据 PathVariable 用于接收路径参数使用{参数名称}描述路径参数 package com.wu.controller;import com.wu.domain.User;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;Controller
public class UserController {RequestMapping(value /users, method RequestMethod.POST)ResponseBodypublic String save(RequestBody User user) {System.out.println(user save user);return {module:user save};}RequestMapping(value /users/{id}, method RequestMethod.DELETE)ResponseBodypublic String delete(PathVariable Integer id) {System.out.println(user delete id);return {module:user delete};}RequestMapping(value /users, method RequestMethod.PUT)ResponseBodypublic String update(RequestBody User user) {System.out.println(user update user);return {module:user update};}RequestMapping(value /users/{id}, method RequestMethod.GET)ResponseBodypublic String getById(PathVariable Integer id) {System.out.println(user getById id);return {module:user getById};}RequestMapping(value /users, method RequestMethod.GET)ResponseBodypublic String getAll() {System.out.println(user getAll);return {module:user getAll};}
}
以图书信息管理为例进行代码优化 RestController注解 类型类注解 位置基于SpringMvc的RESTful开发控制器类定义上方 作用设置当前控制器类为RESTful风格等同于Controller与ResponseBody两个注解组合功能 RESTful快速开发 名称GetMapping(GET) PostMapping(POST) PutMapping(PUT) DeleteMapping(DELETE) 类型方法注解 位置基于SpringMVC的RESful开发控制器方法定义上方 作用设置当前控制器方法请求访问路径与请求动作每种对应一个请求动作 package com.wu.controller;
import com.wu.domain.Book;
import org.springframework.web.bind.annotation.*;//Controller
//ResponseBody
RestController // 将上方两个注解合二为一
RequestMapping(/books)
public class BookController {// RequestMapping(method RequestMethod.POST)PostMappingpublic String save(RequestBody Book book) {System.out.println(book save book);return {module:book save};}// RequestMapping(value /{id}, method RequestMethod.DELETE)DeleteMapping(/{id})public String delete(PathVariable Integer id) {System.out.println(book delete id);return {module:book delete};}// RequestMapping(method RequestMethod.PUT)PutMappingpublic String update(RequestBody Book book) {System.out.println(book update book);return {module:book update};}// RequestMapping(value /{id}, method RequestMethod.GET)GetMapping(/{id})public String getById(PathVariable Integer id) {System.out.println(book getById id);return {module:book getById};}// RequestMapping(method RequestMethod.GET)GetMappingpublic String getAll() {System.out.println(book getAll);return {module:book getAll};}
}
