httpPost对JSON发送和接收
栏目：php教程时间：2016-11-22 08:36:22
public static String postURL(String commString, String address, String encode) {
String rec_string = "";
URL url = null;
HttpURLConnection urlConn = null;
try {
/*得到url地址的URL类*/
url = new URL(address);
/*取得打开需要发送的url连接*/
urlConn = (HttpURLConnection) url.openConnection();
/*设置连接超时时间*/
urlConn.setConnectTimeout(30000);
/*设置读取响应超时时间*/
urlConn.setReadTimeout(30000);
/*设置post发送方式*/
urlConn.setRequestMethod("POST");
/*发送commString*/
urlConn.setDoOutput(true);
urlConn.setDoInput(true);
OutputStreamWriter out;
out = new OutputStreamWriter(urlConn.getOutputStream(), encode);
out.write(commString);
out.flush();
out.close();
/*发送终了 获得返回流，解析流数据*/
BufferedReader rd = new BufferedReader(new InputStreamReader(urlConn.getInputStream(), encode));
StringBuffer sb = new StringBuffer();
int ch;
while ((ch = rd.read()) > ⑴) {
sb.append((char) ch);
}
rec_string = sb.toString().trim();
/*解析终了关闭输入流*/
rd.close();
} catch (Exception e) {
/*异常处理*/
rec_string = "⑴07";
System.out.println(e);
} finally {
if (urlConn != null) {
/*关闭URL连接*/
urlConn.disconnect();
}
}
/*返回响应内容*/
return rec_string;
}
上面是另外一种方式的要求
下面是httpost：
HTTPPost发送JSON：
private static final String APPLICATION_JSON = "application/json"; private static final String CONTENT_TYPE_TEXT_JSON = "text/json";
public static void httpPostWithJSON(String url, String json) throws Exception {
// 将JSON进行UTF⑻编码,以便传输中文 String encoderJson = URLEncoder.encode(json, HTTP.UTF_8); DefaultHttpClient httpClient = new DefaultHttpClient(); HttpPost httpPost = new HttpPost(url); httpPost.addHeader(HTTP.CONTENT_TYPE, APPLICATION_JSON); StringEntity se = new StringEntity(encoderJson); se.setContentType(CONTENT_TYPE_TEXT_JSON); se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, APPLICATION_JSON)); httpPost.setEntity(se); httpClient.execute(httpPost);
}
接收HTTPPost中的JSON:
public static String receivePost(HttpServletRequest request) throws IOException, UnsupportedEncodingException { // 读取要求内容 BufferedReader br = new BufferedReader(new InputStreamReader(request.getInputStream())); String line = null; StringBuilder sb = new StringBuilder();
while((line = br.readLine())!=null){ sb.append(line);
} // 将资料解码 String reqBody = sb.toString(); return URLDecoder.decode(reqBody, HTTP.UTF_8); }
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