1、参数的接受

1、简单参数的接受

package cn.ssdt.tim;

import javax.servlet.http.HttpServletRequest;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;



@RestController
public class RequestController {
    
    
    
//    方式一  原始的请求参数
    
    @RequestMapping("/simpleParam")
    public String simpleParam(HttpServletRequest request) {
        String name = request.getParameter("name");
        String ageStr = request.getParameter("age");
        
        int age = Integer.parseInt(ageStr);
        
        System.out.println(name);
        System.out.print(age);
        return "ok";
    }
    
    
//    方式二  springboot 请求参数
    
    @RequestMapping("/simpleParam2")
    public String simpleParam2(String name,Integer age) {

        
        System.out.println(name + ":"+age);
        return "ok";
    }
    
//    post 请求
    @RequestMapping("/simpleParam3")
    public String postSimpleParam(String name,Integer age) {

        
        System.out.println(name + ":"+age);
        return "ok";
    }
    
    // @RequestParam 中的required属性默认true  代表该参数必须传递。若需要可选，可设置为false
    @RequestMapping("/simpleParam4")
    public String postSimpleParam2(@RequestParam(name="name",required=false)String username,Integer age) {

        
        System.out.println(username + ":"+age);
        return "ok";
    }


}