restTemplat发post请求报错Content type ‘application/xml；charset=UTF-8‘ not supported“

曾经终败给现在 2022-09-16 00:24 197阅读 0赞

### 文章目录 ###

*  解决方式1:自己封装http的post请求
 *  解决方式2:使用resttemplate的exchange，指定请求头的content-Type

> 背景:  
> 本人发送post请求，报错`{"result":"FAILED","timestamp":"1634171535020","errorMessage":"Content type 'application/xml;charset=UTF-8' not supported"}`

![在这里插入图片描述][watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA5oCS5pS-ZGXnlJ_lkb0yMDEw_size_20_color_FFFFFF_t_70_g_se_x_16]  
看了下，请求头没问题的，另辟蹊径，用其他方式代替，暂时避免了这个问题的发生。

# 解决方式1:自己封装http的post请求 #

/** * @author hfl */
    public class HttpUtil { 
        private static final Logger log = LoggerFactory.getLogger(HttpUtil.class);
        private static final CloseableHttpClient httpClient;
        static { 
            RequestConfig config =
                    RequestConfig.custom().setConnectTimeout(60000).setSocketTimeout(15000).build();
            httpClient = HttpClientBuilder.create().setDefaultRequestConfig(config).build();
        }
        
        public static String sendPostJson(String url, JSONObject msg) { 
            PrintWriter out = null;
            BufferedReader in = null;
            String result = "";
    
    
            try { 
                URL realUrl = new URL(url);
                // 打开和URL之间的连接
                URLConnection conn = realUrl.openConnection();
                // 设置通用的请求属性
                conn.setRequestProperty("accept", "*/*");
                conn.setRequestProperty("connection", "Keep-Alive");
                conn.setRequestProperty("content-type", "application/json");
                conn.setRequestProperty("Accept-Charset", "utf-8");
                conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
                // 发送POST请求必须设置如下两行
                conn.setDoOutput(true);
                conn.setDoInput(true);
                // 获取URLConnection对象对应的输出流
                out = new PrintWriter(conn.getOutputStream());
                // 发送请求参数
                log.info("param:{}",msg);
                out.print(msg);
                // flush输出流的缓冲
                out.flush();
                // 定义BufferedReader输入流来读取URL的响应
                in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
                String line;
                while ((line = in.readLine()) != null) { 
                    result += line;
                }
            } catch (Exception e) { 
                log.error(e.getMessage(), e);
            }
            //使用finally块来关闭输出流、输入流
            finally { 
                try { 
                    if (out != null) { 
                        out.close();
                    }
                    if (in != null) { 
                        in.close();
                    }
                } catch (IOException ex) { 
                    ex.printStackTrace();
                }
            }
            return result;
        }
    
    }

使用

String s1 = HttpUtil.sendPostJson(addScheduleUrl, (JSONObject) JSON.toJSON(request));

成功返回。  
![在这里插入图片描述][watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA5oCS5pS-ZGXnlJ_lkb0yMDEw_size_20_color_FFFFFF_t_70_g_se_x_16 1]

# 解决方式2:使用resttemplate的exchange，指定请求头的content-Type #

RestTemplate template = new RestTemplate();
    
    URI uri = UriComponentsBuilder.fromUriString(addScheduleUrl).build().toUri();
     // 自定义body实体类
    
     String s3 = JSON.toJSONString(request);
     RequestEntity<String> requestEntity = RequestEntity.post(uri)
             .accept(MediaType.APPLICATION_JSON)
             .header("Content-Type", "application/json")
             .body(s3);
     ResponseEntity<String> exchange = restTemplate.exchange(requestEntity, String.class);
     String body = exchange.getBody();
     System.out.println(JSON.parseObject(body).toJSONString());

返回正常结果:  
![在这里插入图片描述][42c22a6c5b384f2c9937e06964152155.png]

--------------------

大功告成!!!

[watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA5oCS5pS-ZGXnlJ_lkb0yMDEw_size_20_color_FFFFFF_t_70_g_se_x_16]: /images/20220828/773ce8fe04e54155848c94516561d631.png
[watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA5oCS5pS-ZGXnlJ_lkb0yMDEw_size_20_color_FFFFFF_t_70_g_se_x_16 1]: /images/20220828/5e9d1bd39f5c47059010c2b239a764e0.png
[42c22a6c5b384f2c9937e06964152155.png]: /images/20220828/b8930fb1c9264d8bad0c4b831d178964.png