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An efficient, fast, convenient, easy to learn, easy to use MVC framework and ORM framework. It is seamless compatible with JSTL and supports FreeMarker. It can run independently, and it can also be applied to traditional Java Web projects. It is an efficient, fast, convenient, easy to learn and easy to use MVC framework and ORM framework. It is seamless compatible with JSTL and supports FreeMarker. It can be run on its own, or it can be applied to traditional Java Web projects

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package org.docshare.util;

import java.io.IOException;
import java.io.InputStream;
import java.util.Map;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;
import org.docshare.log.Log;

public class HttpHelper {
	/**
	 * 执行get请求
	 * @param url 网页路径
	 * @return 如果失败返回null，否则返回内容
	 */
	public static String get(String url) {
		return get(url,"utf-8");
	}
	static HttpClient client = new HttpClient();
	public static String get(String url,String charset) {
		GetMethod method = new GetMethod(url);

		client.getHttpConnectionManager().getParams()
				.setConnectionTimeout(10000);// 设置连接时间

		String response=null;
		try {
			int status = client.executeMethod(method);
			if (status == HttpStatus.SC_OK) {
				InputStream inputStream = method.getResponseBodyAsStream();
				response = IOUtil.readStream(inputStream,charset);
			} else {
				response = null;
			}
		} catch (HttpException e) {
			Log.e(e);
		} catch (IOException e) {
			Log.e(e);
		}
		return response;
	}
	/**
	 * 执行post请求，返回页面内容
	 * @param postUrl 网址
	 * @param params  参数
	 * @return 如果失败返回null，否则返回内容
	 */
	public static String post(String postUrl, Map params) {
		return post(postUrl,params,"utf-8");
	}
	/**
	 * 执行post请求，返回页面内容
	 * @param postUrl 网址
	 * @param params  参数
	 * @param charset 编码方式
	 * @return 如果失败返回null，否则返回内容
	 */
	public static String post(String postUrl, Map params,String charset) {
		String response = "";
		PostMethod postMethod = new PostMethod(postUrl);
		if (params != null) {
			for (String key : params.keySet()) {
				postMethod.addParameter(key, params.get(key).toString());
			}
		}
		try {
			client.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET, charset);
			client.getHttpConnectionManager().getParams()
					.setConnectionTimeout(10000);// 设置连接时间
			int status = client.executeMethod(postMethod);
			
			InputStream inputStream = postMethod.getResponseBodyAsStream();
			response = IOUtil.readStream(inputStream,charset);
			if((""+status).startsWith("5")){
				response = null;
			}
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			// 释放连接
			postMethod.releaseConnection();
		}
		return response;
	}

//	public static void main(String[] args) {
//		HashMap map = new HashMap();
//		map.put("a", "12");
//		String ret = HttpHelper.post("http://localhost:8080/", map);
//		System.out.println(ret);
//		
//		ret = HttpHelper.get("http://localhost:8080/");
//		System.out.println(ret);
//	}
}