SpringBoot 自定义 Response Headers

package me.yundongis.linkblogservice.controller;

import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {

    @GetMapping("/hello")
    public ResponseEntity<Object> hello(){
        HttpHeaders httpHeaders = new HttpHeaders();
        httpHeaders.add("Content-Length","11");
        // 参数1：返回的包体  参数2：返回的 Headers  参数3：状态码
        return new ResponseEntity<>("hello,worlds!",httpHeaders, HttpStatus.OK);
    }

}

扩展内容
github
个人博客