Java HTTP请求接口返回值乱码

喜欢ヅ旅行 2023-03-02 10:55 27阅读 0赞

### 一、问题描述 ###

系统访问第三方系统接口时乱码，（我遇到的问题是 本地运行时，中文不乱码。当部署到Linux服务器上时第三方接口返回的数据就中文乱码）

{ 
        "code": 400,
        "msg": "���������������",
        "error": "com.siona.common.exception.ApiException: ���������������",
        "data": null
    }

### 二、解决方案 ###

修改 `HTTP工具类`，将返回值编码格式设置为 `UTF-8`

将 `UTF-8` 加入到输入流，这样在源头上解决了中文乱码问题，`如果读取完了再进行转码，会出现部分乱码问题`

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzODMzMzI3_size_16_color_FFFFFF_t_70]

完整代码如下：

public static String doNewPost(String host, String path, String method,
                                       Map<String, String> headers,
                                       Map<String, String> querys,
                                       String body) throws Exception { 
            StringBuffer result = new StringBuffer();
            byte[] resultByte = body.getBytes();
            URL url = new URL(buildUrl(host, path, querys));
            HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
            urlConnection.setDoOutput(true);
            urlConnection.setDoInput(true);
            urlConnection.setUseCaches(false);
            if (headers != null) { 
                for (Map.Entry<String, String> e : headers.entrySet()) { 
                    urlConnection.setRequestProperty(e.getKey(), e.getValue());
                }
            }
            DataOutputStream outputStream = new DataOutputStream(urlConnection.getOutputStream());
            outputStream.write(resultByte);
            outputStream.flush();
            outputStream.close();
            InputStream is = urlConnection.getInputStream();
            BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
            String readLine;
            while ((readLine = br.readLine()) != null) { 
                result.append(readLine);
            }
            is.close();
            br.close();
            urlConnection.disconnect();
            return result.toString();
        }

`该代码是封装后的代码，请按照实际情况进行修改！！！`

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzODMzMzI3_size_16_color_FFFFFF_t_70]: /images/20230208/971dd3c320264d89b33b28671cccf83f.png