public String Post(String url, String reqMes) {
String status = "";
String responseStr = "";
PrintWriter out = null;
BufferedReader in = null;
try {
URL realUrl = new URL(url);
// 打开和URL之间的连接
URLConnection conn = realUrl.openConnection();
HttpURLConnection httpUrlConnection = (HttpURLConnection) conn;
// 设置请求属性
httpUrlConnection.setRequestProperty("Content-Type", "application/json");
httpUrlConnection.setRequestProperty("x-adviewrtb-version", "2.1");
// 发送POST请求必须设置如下两行
httpUrlConnection.setDoOutput(true);
httpUrlConnection.setDoInput(true);
// 获取URLConnection对象对应的输出流
out = new PrintWriter(httpUrlConnection.getOutputStream());
// 发送请求参数
out.write(reqMes);
// flush输出流的缓冲
out.flush();
httpUrlConnection.connect();
// 定义BufferedReader输入流来读取URL的响应
in = new BufferedReader(new InputStreamReader(httpUrlConnection.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
responseStr += line;
}
status = new Integer(httpUrlConnection.getResponseCode()).toString();
// System.out.println("status=============="+status);
// System.out.println("response=============="+responseStr);
} catch (Exception e) {
System.out.println("发送 POST 请求出现异常!" + e);
}
// 使用finally块来关闭输出流、输入流
finally {
try {
if (out != null) { out.close();}
if (in != null) {in.close();}
} catch (Exception ex) {
ex.printStackTrace();
}
}
return responseStr;
}
方法中的参数第一个是请求的地址,第二个是想要传递的内容,或者数据。