在Java中使用HttpURLConnection发送特殊字符

Question

我有一个网络服务，我想用“应用/x-www-表单-urlencoded”内容类型调用它。请求有时包含特殊字符，如*-和......问题是目标Web服务不能完美地接收请求。它接收类似这样的: "////////////////w=="几乎所有字符都转到/。到底是什么问题？

这是我的密码：

        URL url = new URL("a-web-service-url");
        HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
        httpURLConnection.setDoInput(true);
        httpURLConnection.setDoOutput(true);
        httpURLConnection.setUseCaches(false);
        httpURLConnection.setRequestMethod("POST");
        httpURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
        OutputStreamWriter outputStreamWriter = new OutputStreamWriter(httpURLConnection.getOutputStream(), "UTF-8");
        outputStreamWriter.write("test=/-+*=!@#$%^&*()_");
        outputStreamWriter.flush();
        InputStream inputStream = httpURLConnection.getInputStream();
        InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "UTF-8");
        BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

        StringBuilder stringBuilder;
        String line;
        for (stringBuilder = new StringBuilder(); (line = bufferedReader.readLine()) != null; stringBuilder = stringBuilder.append(line)) {
            ;
        }

        bufferedReader.close();
        httpURLConnection.disconnect();
        String response = stringBuilder.toString().trim();

web服务接收：

test=////////////////w==

Answer 1

发送前使用URLEncoder对字符串进行编码。

URLEncoder.encode(message, "UTF-8" );

在这种情况下，它将是

outputStreamWriter.write(URLEncoder.encode("test=/-+*=!@#$%^&*()_", "UTF-8" ));