转载：https://blog.csdn.net/smshuxue/article/details/17194803
需要的jar包:commons-httpclient-3.1.jar,commons-logging-1.0.4.jar,commons-codec-1.2.jar。在大地财险测试通过。
代码如下所示：
package cn.com.sinosoft.test.http;
import org.apache.commons.httpclient.HostConfiguration;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.StringRequestEntity;
import org.apache.commons.httpclient.params.HttpConnectionManagerParams;
public class PostSample {
public static void main(String[] args) {
HttpClient httpClient = new HttpClient();
// 设置代理
// HostConfiguration hcf = new HostConfiguration();
// hcf.setProxy("localhost", 8118);
// httpClient.setHostConfiguration(hcf);
HttpConnectionManagerParams managerParams = httpClient
.getHttpConnectionManager().getParams();
// 设置连接超时时间(单位毫秒)
managerParams.setConnectionTimeout(30000);
// 设置读数据超时时间(单位毫秒)
managerParams.setSoTimeout(120000);
String url = "http://localhost/testweb/commserver";
PostMethod postMethod = new PostMethod(url);
// 将请求参数XML的值放入postMethod中
String strResponse = null;
try {
postMethod.setRequestEntity(new StringRequestEntity(
createRequestXML(), "text/xml", "GBK"));
int statusCode = httpClient.executeMethod(postMethod);
if (statusCode != HttpStatus.SC_OK) {
throw new IllegalStateException("Method failed: "
+ postMethod.getStatusLine());
}
strResponse = postMethod.getResponseBodyAsString();
} catch (Exception ex) {
throw new IllegalStateException(ex.toString());
} finally {
// 释放连接
postMethod.releaseConnection();
}
System.out.println(strResponse);
}
public static String createRequestXML() {
StringBuffer buffer = new StringBuffer();
buffer.append("<?xml version=/"1.0/" encoding=/"GBK/"?>");
buffer.append("<PACKET>");
buffer.append("<HEAD>");
buffer.append("<REQUEST_TYPE>01</REQUEST_TYPE>");
buffer.append("</HEAD>");
buffer.append("</PACKET>");
return buffer.toString();
}
}