Question

怎样获得HttpEntity里面的内容解决方案

Answer 1

通过HttpPut进行了PUT请求，获得了返回的HttpEntity，并且判断出HttpEntity不为空，但是HttpEntity里面的内容取不出来，代码如下：

HttpResponse httpResponse = httpClient.execute(httpPut);

HttpEntity httpEntity = httpResponse.getEntity();

if (httpEntity != null){

InputStream instreams = httpEntity.getContent();

String str = ConvertStreamToString(instreams);

System.out.println("Response:" + "\n" + str);

}

ConvertStreamToString()函数如下：

// Convert stream to string

public static String ConvertStreamToString(InputStream is) {

BufferedReader reader = new BufferedReader(new InputStreamReader(is));

StringBuilder sb = new StringBuilder();

String line = null;

try {

while ((line = reader.readLine()) != null) {

sb.append(line + "\n");

}

} catch (IOException e) {

System.out.println("Error=" + e.toString());

} finally {

try {

is.close();

} catch (IOException e) {

System.out.println("Error=" + e.toString());

}

}

return sb.toString();

}

结果只输出了：
Response:
后面就没有了。输出了Response:，说明httpEntity != null，但是读出的字符串又是空的，这是怎么回事呢？是不是ConvertStreamToString()这个函数有问题，还是httpEntity本来就没东西？
------解决方案--------------------
不知道 你什么原因应该可以的。
这个自带的http
String s= "http://xinjinqiao.tprtc.com/admin/main/pro!lrprolist.do";

URL url = new URL(s);

HttpURLConnection http = (HttpURLConnection) url.openConnection();

http.setDoOutput(true);

http.setDoInput(true);

http.setRequestMethod("POST");

http.connect();

OutputStreamWriter out = new OutputStreamWriter(http.getOutputStream(), "UTF-8");

String input = "name=flr&nowpage=1&pagesize=10";

out.append(input);

out.flush();

out.close();

int length = (int) http.getContentLength();

System.out.println(length);

BufferedReader reader = new BufferedReader(new InputStreamReader(http.getInputStream()));

String line;

StringBuffer buffer = new StringBuffer();

while ((line = reader.readLine()) != null) {

buffer.append(line);

}

reader.close();

http.disconnect();

System.out.println(buffer.toString());

------解决方案--------------------
EntityUtils 这个类里面有方法