jquery 跨域解决方案1

package cn.com.ld.util;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

/**
 * @filename: HttpAccessProxy
 * @Description: TODO
 * @author java小生
 * @date 2012-9-13 下午4:09:56
 */
public class HttpAccessProxy {
    public static String accessProxy(String pageUrl) {
        URL url;
        String pageString = "";
        InputStream is = null;
        BufferedReader br = null;
        StringBuffer sb = null;
        try {
            url = new URL(pageUrl);
            HttpURLConnection connection = (HttpURLConnection) url
                    .openConnection();
            is = connection.getInputStream();
            br = new BufferedReader(new InputStreamReader(is));
            sb = new StringBuffer();
            String line = null;
            while ((line = br.readLine()) != null) {
                sb.append(line + "\n");
            }
            pageString = sb.toString();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                is.close();
                br.close();
            } catch (IOException e) {
                e.printStackTrace();
            }

        }
        return pageString;
    }

    public static void main(String[] args) {
        System.out.println(HttpAccessProxy.accessProxy("http://localhost:8080/ws/web/pages/data/json.jsp"));
    }
}

package cn.com.ld.util;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

/**
 * @filename: HttpAccessProxy
 * @Description: TODO
 * @author java小生
 * @date 2012-9-13 下午4:09:56
 */
public class HttpAccessProxy {
	public static String accessProxy(String pageUrl) {
		URL url;
		String pageString = "";
		InputStream is = null;
		BufferedReader br = null;
		StringBuffer sb = null;
		try {
			url = new URL(pageUrl);
			HttpURLConnection connection = (HttpURLConnection) url
					.openConnection();
			is = connection.getInputStream();
			br = new BufferedReader(new InputStreamReader(is));
			sb = new StringBuffer();
			String line = null;
			while ((line = br.readLine()) != null) {
				sb.append(line + "\n");
			}
			pageString = sb.toString();
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				is.close();
				br.close();
			} catch (IOException e) {
				e.printStackTrace();
			}

		}
		return pageString;
	}

	public static void main(String[] args) {
		System.out.println(HttpAccessProxy.accessProxy("http://localhost:8080/ws/web/pages/data/json.jsp"));
	}
}