request中读取字符串

1、

             BufferedReader reader = request.getReader();
             char[] buf = new char[1024];
             int len = 0;
             StringBuffer sb = new StringBuffer();
             while ((len = reader.read(buf)) != -1) {
             sb.append(buf, 0, len);
             }
             String result = sb.toString();

 2、

InputStream is = request.getInputStream();
             InputStreamReader reader = new InputStreamReader(is, "gbk");
             StringWriter writer = new StringWriter();
             char[] buffer = new char[1024];
             int n = 0;
             while (-1 != (n = reader.read(buffer))) {
             writer.write(buffer, 0, n);
             }
             String result = writer.toString();