getversion.java

来自「著名IT公司ILog的APS高级排产优化引擎」· Java 代码 · 共 50 行

package com.power.language;

/**
 * connect Servlet and return back Version Flag string
 * Creation date: (2002-6-27 15:35:20)
 * @author: vicksong
 */
import java.net.*;
import java.io.*;
import com.power.pipe.*;

public class GetVersion {
    /**
     * GetVersion constructor comment.
     */
    public GetVersion() {
        super();
    }
    public static String getVersionFlag() {

        /**** get Global Configuration ****/
        String urlAddr = GlobalConfig.getInstance().getVersionURL();

	    /**** initialize Connection ****/
        URL url = null;
        HttpURLConnection urlconn = null;
        BufferedReader d = null;
        String VersionFlag = "EN"; //as default Flag

        /**** start Connection of Servlet ****/
        try {

            url = new URL(urlAddr);
            urlconn = (HttpURLConnection) (url.openConnection());
            urlconn.setRequestMethod("GET");
            d = new BufferedReader(new InputStreamReader(urlconn.getInputStream()));
            VersionFlag = d.readLine();
            d.close();
            urlconn.disconnect();

        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
        finally {
	        return VersionFlag;
        }
    }
}