无法从servlet调用javascript [英] Cannot call javascript from from servlet

问题描述

我使用此代码创建了动态按钮。

I have made dynamic buttons, using this code.

out.print("<table>");
 out.print("<center><h1>Result:</h1></center>");
 rs=ps.executeQuery();                
 /* Printing column names */
 ResultSetMetaData rsmd=rs.getMetaData();
 out.print("<tr>");

 while(rs.next())
    {
     out.print("<td>"+rs.getString(2));              
     out.print("  <script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script>");
     out.print(" <script src=\"js/index.js\"></script>");
     out.print("<button type=\"button\" onclick=friendnamebtn() id=\"btn_friends\">");
     out.print("Add" + rs.getString(2));
     out.print("</button>");
     out.print("</td></tr>");
 }
 out.print("</table>");    

我的javascript存储在index.js中

my javascript which is stored in index.js

function friendnamebtn()
{
     var friends = document.getElementById("btn_friends");
     alert(freinds+"add");
}

实际上，当我点击该按钮时，我希望获取该ID并将其添加到登录人的朋友列表中。我使用javascript调用了按钮事件如何连接这两个人。

Actually when i click on that button, i want that id to be fetched and add that persons to the logged in person's friend list. I called the buttons event using javascript how do i connect those two people.

推荐答案

这可能是因为你在声明javascript事件时错过了引用。你可以尝试这样的吗？

It may be because you are missing the Quote while declaring the javascript event. Can you try something like this?

out.print("<button type=\"button\" onclick='javascript:return friendnamebtn(this)' id=\"btn_friends\">");

function friendnamebtn(sender)
{
     //write your code here
     return false;
}

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