Javascript 如何在SpringMVC控制器中编写java脚本确认弹出框？_Javascript_Java_Spring Mvc

Javascript 如何在SpringMVC控制器中编写java脚本确认弹出框？

javascript java spring-mvc

Javascript 如何在SpringMVC控制器中编写java脚本确认弹出框？,javascript,java,spring-mvc,Javascript,Java,Spring Mvc,我正在用SpringMVC3编写一个文件上传程序这是我的控制器类我正在包括我的jsp页面 <%@ 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/lo

我正在用SpringMVC3编写一个文件上传程序

这是我的控制器类

我正在包括我的jsp页面

<%@ 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>
<script>
function getChoice(){
    var k=confirm("Do you want me to overwrite the existing file ?");
    return k;
}
</script>
</head>
<body style="background-color:powderblue;color:Tomato">
<center><form method="POST" action="saveagain">    
<h3>${message} </h3>
            <br> <br>
<input type="hidden" name="fname" value="${filename}">
<input type="hidden" name="fcontent" value="${filecontent}"> <br><br>
 <input type="button" value="Overwrite ?" onclick="choice=getChoice()"/>
<input type="submit" value="Submit ?"></form></center>
<br>
<br>
<center><b>${m}</b></center>
<br><br>
<center><a href="toupload">Click me to upload a file</a>  <br><br>
<a href="uploadxml">Upload xml as text file</a>  <br><br>
<a href="uploadcsv">Upload CSV as text file</a>  <br><br>
<a href="uploadxls">Upload excel as text file</a>  <br><br>
<a href="view">View files</a><br><br>
<a href="deletefiles">Delete multiple files</a></center>
</body>
</html>


在此处插入标题
函数getChoice（）{
var k=confirm（“是否要我覆盖现有文件？”）；
返回k；
}
${message}










${m}

如何将bean变量“choice”设置为确认弹出窗口的结果？

试试这个

函数myFunction（）{
var a=确认（“按下按钮！”）；
控制台日志（a）
}

试试看

不确定在我的代码中建议的更改放在哪里。@sahiti var a有两个值true或false创建if块，如果值为true，则调用submitcall@NishalEdu抱歉nishal，还是不能。1). 建议的更改是在jsp页面中还是在控制器中？2）如果在jsp页面中，如何将函数的返回值放入控制器中的变量中？

<%@ taglib prefix = "form" uri = "http://www.springframework.org/tags/form"%>
<%@ 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>File Upload Example</title>
</head>
<body style="background-color:powderblue;color:Tomato"> 
<br>
<br>
<center><form:form action="savefile" method = "POST" modelAttribute = "fileUpload"
         enctype = "multipart/form-data">
         Please select a file to upload : 
         <input type = "file" name = "file" /><br><br><br>
         <input type = "submit" value = "upload" />
         <input type = "reset" value = "Reset" />
      </form:form></center>
      <br>
      <br>
      <br>
      <center><b> ${message} </b></center>
      <br> 
     <center> <a href="view">View files</a><br><br>
       <a href="uploadxml">Upload xml as text file</a>  <br><br>
<a href="uploadcsv">Upload CSV as text file</a>  <br><br>
<a href="uploadxls">Upload excel as text file</a>  <br><br>
<a href="deletefiles">Delete multiple files</a>
   </center>
   </body>
</html>

<%@ 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 style="background-color:powderblue;color:Tomato">
<center><form method="POST" action="saveagain">    

   <center><h3>${message}(Say yes\no)</h3></center> 
   <br>

          <input type="text" name="choice">
            <br><br>
            <input type="hidden" name="fname" value="${filename}">

              <input type="hidden" name="fcontent" value="${filecontent}">
     <input type="submit" value="submit" /> </form></center>
<br>
<br>
<center><b>${m}</b></center>
<br><br>
<center><a href="toupload">Click me to upload a file</a>  <br><br>
<a href="uploadxml">Upload xml as text file</a>  <br><br>
<a href="uploadcsv">Upload CSV as text file</a>  <br><br>
<a href="uploadxls">Upload excel as text file</a>  <br><br>
<a href="view">View files</a><br><br>
<a href="deletefiles">Delete multiple files</a></center>
</body>
</html>

  package com.fss;

    public class Choice {
    private boolean choice;
    private String fname;
    private String fcontent;

    public boolean isChoice() {
        return choice;
    }

    public void setChoice(boolean choice) {
        this.choice = choice;
    }

    public String getFname() {
        return fname;
    }

    public void setFname(String fname) {
        this.fname = fname;
    }

    public String getFcontent() {
        return fcontent;
    }

    public void setFcontent(String fcontent) {
        this.fcontent = fcontent;
    }


    }

<%@ 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>
<script>
function getChoice(){
    var k=confirm("Do you want me to overwrite the existing file ?");
    return k;
}
</script>
</head>
<body style="background-color:powderblue;color:Tomato">
<center><form method="POST" action="saveagain">    
<h3>${message} </h3>
            <br> <br>
<input type="hidden" name="fname" value="${filename}">
<input type="hidden" name="fcontent" value="${filecontent}"> <br><br>
 <input type="button" value="Overwrite ?" onclick="choice=getChoice()"/>
<input type="submit" value="Submit ?"></form></center>
<br>
<br>
<center><b>${m}</b></center>
<br><br>
<center><a href="toupload">Click me to upload a file</a>  <br><br>
<a href="uploadxml">Upload xml as text file</a>  <br><br>
<a href="uploadcsv">Upload CSV as text file</a>  <br><br>
<a href="uploadxls">Upload excel as text file</a>  <br><br>
<a href="view">View files</a><br><br>
<a href="deletefiles">Delete multiple files</a></center>
</body>
</html>