} finally { if (httpurlconnection != null) httpurlconnection.disconnect(); } return result.toString().trim(); }2、httpclient:public static String post(String url,String params){ HttpClient httpClient = new DefaultHttpClient(); StringBuilder builder = new StringBuilder(); HttpPost post = new HttpPost(url); try { if(null!=params){ post.setEntity(new StringEntity(params,"UTF-8")); } HttpResponse resp = httpClient.execute(post); int statusCode = resp.getStatusLine().getStatusCode(); if(statusCode<=304){ HttpEntity entity = resp.getEntity(); if (entity == null) { throw new IllegalArgumentException("HTTP entity may not be null"); } if (entity.getContentLength() > Integer.MAX_VALUE) { throw new IllegalArgumentException("HTTP entity too large to be buffered in memory"); } int i = (int)entity.getContentLength(); i = i<0 ? 4096 : i; final InputStream instream = entity.getContent(); final Reader reader = new InputStreamReader(instream, Config.DEFAULT_CHARSET); final CharArrayBuffer buffer = new CharArrayBuffer(i); final char[] tmp = new char[1024]; int l; while((l = reader.read(tmp)) != -1) { buffer.append(tmp, 0, l); } builder.append(buffer); } post.abort(); } catch (Exception e) { post.abort(); } return builder.toString().trim(); }
网上找个例子 httppost请求··· http通讯啊···
1、java自带类库:public static String call(String address,String params) {
URL url = null;
HttpURLConnection httpurlconnection = null;
StringBuilder result = new StringBuilder();
try {
url = new URL(address);
// 以post方式请求
httpurlconnection = (HttpURLConnection) url.openConnection();
httpurlconnection.setDoOutput(true);
httpurlconnection.setRequestMethod("POST");
if(null!=params&¶ms.length()>0){
httpurlconnection.getOutputStream().write(params.getBytes());
httpurlconnection.getOutputStream().flush();
httpurlconnection.getOutputStream().close();
}
// 获取页面内容
java.io.InputStream in = httpurlconnection.getInputStream();
java.io.BufferedReader breader = new BufferedReader(new InputStreamReader(in, Config.DEFAULT_CHARSET));
String str = breader.readLine();
while (str != null) {
result.append(str);
str = breader.readLine();
}
breader.close();
in.close();
} catch (Exception e) {
} finally {
if (httpurlconnection != null)
httpurlconnection.disconnect();
}
return result.toString().trim();
}2、httpclient:public static String post(String url,String params){
HttpClient httpClient = new DefaultHttpClient();
StringBuilder builder = new StringBuilder();
HttpPost post = new HttpPost(url);
try {
if(null!=params){
post.setEntity(new StringEntity(params,"UTF-8"));
}
HttpResponse resp = httpClient.execute(post);
int statusCode = resp.getStatusLine().getStatusCode();
if(statusCode<=304){
HttpEntity entity = resp.getEntity();
if (entity == null) {
throw new IllegalArgumentException("HTTP entity may not be null");
}
if (entity.getContentLength() > Integer.MAX_VALUE) {
throw new IllegalArgumentException("HTTP entity too large to be buffered in memory");
}
int i = (int)entity.getContentLength();
i = i<0 ? 4096 : i;
final InputStream instream = entity.getContent();
final Reader reader = new InputStreamReader(instream, Config.DEFAULT_CHARSET);
final CharArrayBuffer buffer = new CharArrayBuffer(i);
final char[] tmp = new char[1024];
int l;
while((l = reader.read(tmp)) != -1) {
buffer.append(tmp, 0, l);
}
builder.append(buffer);
}
post.abort();
} catch (Exception e) {
post.abort();
}
return builder.toString().trim();
}