Java HTTP请求接口返回值乱码

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

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！！！

本文地址：https://blog.csdn.net/qq_33833327/article/details/107656386