从java main方法调用servlet [英] Invoking servlet from java main method

问题描述

  import java.net。*; 
 import java.io. *; 
公共类样本
 {
 public static void main（String args []）
 {
 String line; 
 try 
 {
 URL url = new URL（http：// localhost：8080 / WeighPro / CommPortSample）; 
 BufferedReader in = new BufferedReader（new InputStreamReader（url.openStream（）））; 
 line = in.readLine（）; 
 System.out.println（line）; 
 in.close（）; 
} 
 catch（例外e）
 {
 System.out.println（Hello Project ::+ e.getMessage（））; 
} 
} 
} 
  

我的Servlet正在调用另一个Jsp如下所示的页面，

  RequestDispatcher rd = request.getRequestDispatcher（index.jsp）; 
 rd.forward（请求，回复）; 
  

我没有在浏览器中得到任何反应/输出，一旦servlet必须执行它被调用。

我是否遗漏了这个过程的任何基本步骤？请帮忙！！！

解决方案

如果你想在浏览器中打开它，试试这个

<$ p 。$ p> java.awt.Desktop.getDesktop（）浏览（java.net.URI.create（ HTTP：//本地主机：8080 / WeighPro / CommPortSample））;


import java.net.*; 
import java.io.*; 
public class sample
{  
    public static void main (String args[]) 
    { 
        String line;
        try 
        { 
            URL url = new URL( "http://localhost:8080/WeighPro/CommPortSample" ); 
            BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream())); 
            line = in.readLine(); 
            System.out.println( line ); 
            in.close(); 
        }
        catch (Exception e)
        { 
            System.out.println("Hello Project::"+e.getMessage());
        } 
    } 
}

My Servlet is invoking another Jsp page like the below,

 RequestDispatcher rd=request.getRequestDispatcher("index.jsp");
 rd.forward(request, response);

I am not getting any reaction/output in the browser, where the servlet has to be executed once it is invoked.

Am I missing any basic step for this process? Please Help!!!

解决方案

If you want to open it in browser try this

java.awt.Desktop.getDesktop().browse(java.net.URI.create("http://localhost:8080/WeighPro/CommPortSample"));

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