spring boot——请求与参数校验——使用ResponseEntity处理http响应

深藏阁楼爱情的钟 2023-09-29 18:36 1阅读 0赞

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package org.example.controller.requestparam;
    
    import org.apache.ibatis.jdbc.Null;
    import org.springframework.http.HttpHeaders;
    import org.springframework.http.HttpStatus;
    import org.springframework.http.ResponseEntity;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    @RestController
    public class ResponseEntityController
    {
        // http://localhost:8080//responseEntity
        /**
         * 通过 ResponseEntity 处理响应   基础使用
         * @param
         * @return
         */
        @RequestMapping("/responseEntity")
        public ResponseEntity<String> greeting(){
    
            return new ResponseEntity<>("hello there", HttpStatus.OK);
        }
    
        // http://localhost:8080//responseEntity-header
        /**
         * 通过 ResponseEntity 处理响应   添加自定义的http-header
         * @param
         * @return
         */
        @RequestMapping("/responseEntity-header")
        public ResponseEntity<String> greetingHeader(){
    
            HttpHeaders hds = new HttpHeaders();
            hds.add("Custem-Header","custemHeader");
    
            return new ResponseEntity<>("hello there", hds,HttpStatus.OK);
        }
        // httpStatus也可以返回不同的状态码
    
    
        @RequestMapping("/responseEntity-null")
        public ResponseEntity<Long> greetingNull(){
    
    
            return new ResponseEntity<>(null,HttpStatus.BAD_GATEWAY);
        }
    }

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