SSM中使用RESTful风格开发

RESTful请求方式

• 查询: GET
• 添加/保存: POST
• 删除: DELET
• 修改: PUT

 

SSM查询使用RESTful风格

• 无参请求

一般用于查询全部(selectAll)

//设置当前请求方法为GET，表示REST风格中的查询操作
    @RequestMapping(value = "/users",method = RequestMethod.GET)
    @ResponseBody
    public String getAll(){
        System.out.println("user getAll...");
        return "{'module':'user getAll'}";
    }

• 有参请求

一般用于查询单条信息(selectOne)

//设置当前请求方法为GET，表示REST风格中的查询操作
    @RequestMapping(value = "/users/{id}",method = RequestMethod.GET)
    @ResponseBody
    public String getUser(@PathVariable Integer id){
        System.out.println("user getUser...");
        return "{'module':'user getUser'}";
    }

 

SSM添加/保存使用RESTful风格

//设置当前请求方法为POST，表示REST风格中的添加操作
    @RequestMapping(value = "/users",method = RequestMethod.POST)
    @ResponseBody
    public String saveUser(){
        System.out.println("user save...");
        return "{'module':'user save'}";
    }

 

SSM删除使用RESTful风格

• 单一参数删除(删除一个)

//设置当前请求方法为DELETE，表示REST风格中的删除操作 
    @RequestMapping(value = "/users/{id}",method = RequestMethod.DELETE)
    @ResponseBody
    public String delete(@PathVariable Integer id){
        System.out.println("user delete..." + id);
        return "{'module':'user delete'}";
    }

• 多参删除(删除多个)

//设置当前请求方法为DELETE，表示REST风格中的删除操作 
    @RequestMapping(value = "/users",method = RequestMethod.DELETE)
    @ResponseBody
    public String delete(@RequestBody List<Integer> ids){
        System.out.println("user delete..." + ids);
        return "{'module':'user delete'}";
    }

 

SSM修改使用RESTful风格

    @RequestMapping(value = "/users",method = RequestMethod.PUT)
    @ResponseBody
    public String update(@RequestBody User user){
        System.out.println("user update..."+user);
        return "{'module':'user update'}";
    }

 

进阶简化

@Controller
@RequestMapping("/users")
public class UserController {
    
    @GetMapping
    @ResponseBody
    public String getAll() {
        System.out.println("user getAll...");
        return "{'module':'user getAll'}";
    }
    
    @GetMapping("/{id}")
    @ResponseBody
    public String getUser(@PathVariable Integer id) {
        System.out.println("user getUser...");
        return "{'module':'user getUser'}";
    }

    @PostMapping
    @ResponseBody
    public String saveUser() {
        System.out.println("user save...");
        return "{'module':'user save'}";
    }

    @DeleteMapping("/{id}")
    @ResponseBody
    public String delete(@PathVariable Integer id) {
        System.out.println("user delete..." + id);
        return "{'module':'user delete'}";
    }

    @DeleteMapping
    @ResponseBody
    public String delete(@RequestBody List<Integer> ids) {
        System.out.println("user delete..." + ids);
        return "{'module':'user delete'}";
    }

    @PutMapping
    @ResponseBody
    public String update(@RequestBody User user) {
        System.out.println("user update..." + user);
        return "{'module':'user update'}";
    }
}