[英]when i am trying to call a servlet page from my jsp page using anchor tag it showing an error
我有一個帶有錨標記的簡單jsp頁面，它將調用servlet頁面：以下是jsp代碼
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Download Data</title>
</head>
<body>
View data in following format:<br>
<a href = "Filedownload">MS-Excel</a>
</body>
</html>
這是我的servlet頁面：
package com.primeki.devlopment.usm.view;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet("/ExcelServlet")
public class Filedownload extends HttpServlet {
private static final long serialVersionUID = 1L;
public Filedownload() {
super();
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request,response);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("application/vnd.ms-excel");
PrintWriter out = response.getWriter();
out.println("Name\tJob\tSalary");
out.println("Raj\tAccountant\t20000");
out.println("Vinay\tAccountant\t20000");
out.println("Rajesh\tAccountant\t20000");
out.println("\tTotal:\t=sum(c2:c3)");
out.close();
}
}
當我單擊錨標記時，我得到一個錯誤...我想制作一個excel表以通過單擊錨標記來下載..但是我遇到了一個錯誤...請幫助我。
我可能會誤會，因為我是Java EE的新手，但是當您的servlet是@WebServlet("/ExcelServlet") ， <a href = "Filedownload">MS-Excel</a>錨似乎正在重定向到Filedownload 。
嘗試將錨定更改為<a href = "ExcelServlet">MS-Excel</a>
您已將WebServlet "/ExcelServlet"命名為WebServlet "/ExcelServlet" ，這意味着它將對對http：// {server} / {app-name} / ExcelServlet的請求進行響應，並且您具有指向href = "Filedownload"的鏈接
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