将输入流InputStream转换为String

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 1 public static String convertStreamToString(InputStream is) {       2         /*   3           * To convert the InputStream to String we use the BufferedReader.readLine()   4           * method. We iterate until the BufferedReader return null which means   5           * there's no more data to read. Each line will appended to a StringBuilder   6           * and returned as String.   7           */      8          BufferedReader reader = new BufferedReader(new InputStreamReader(is));       9          StringBuilder sb = new StringBuilder();      10      11          String line = null;      12         try {      13             while ((line = reader.readLine()) != null) {      14                  sb.append(line + "\n");      15              }      16          } catch (IOException e) {      17              e.printStackTrace();      18          } finally {      19             try {      20                  is.close();      21              } catch (IOException e) {      22                  e.printStackTrace();      23              }      24          }      25      26         return sb.toString();      27      }

二、推荐一个jar包，用来转换InputStream到String，代码示例如下：

1 // 引入apache的io包2 import org.apache.commons.io.IOUtils;3 4 InputStream in = con.getInputStream();5 String result = IOUtils.toString(in, "UTF-8");

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