一天的问候!!!
我创建了一个jsp文件如下:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org /TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form action="TestAms" method="post">
<%
for(int i=0; i<5; i++){
%>
<input type="radio" name="<%= i%>" value="<%=i %>">
<%
}
%>
<input type="submit" value="SUBMIT">
</form>
</body>
</html>
该程序在一个循环中创建 5 个单选按钮,其名称和值与循环变量相同。现在我想获取 servlet 中单选按钮的值。我的 servlet 的代码如下:
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;
public class TestAms extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
PrintWriter out = response.getWriter();
for (int i=0; i<5; i++){
String s[] = new String[5];
s[i] = request.getParameter("<%= i%>");
out.println(s[i]);
}
}
}
但我只以 5 个“空”值结束。我知道问题出在哪里。但我无法找到将循环变量传递给 request.getParameter() 方法的方法。请帮助我.....提前谢谢!