Javascript 如何将 .js 文件中的 JS 函数调用到 .jsp 文件中？
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How to call JS function within .js file into .jsp file?
提问by Simple-Solution
I am trying to call a javaScript function that's in .../js/index.js file to .../index.jsp file.
我正在尝试将 .../js/index.js 文件中的 javaScript 函数调用到 .../index.jsp 文件中。
Any suggestion would be helpful.
任何建议都会有所帮助。
Here is code within both file:
这是两个文件中的代码：
index.js
索引.js
function testing() {
if ("c" + "a" + "t" === "cat") {
document.writeln("Same");
} else {
document.writeln("Not same");
};
};
index.jsp
索引.jsp
<%@ 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>
<script type="text/javascript" src="js/index.js">
<!-- I want to call testing(); function here -->
</script>
</body>
</html>
回答by Darin Dimitrov
First reference the external index.jsfile and then call the function in an inline script element:
首先引用外部index.js文件，然后在内联脚本元素中调用该函数：
<%@ 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>
<script type="text/javascript" src="js/index.js"></script>
<script type="text/javascript">
testing();
</script>
</body>
</html>
By the way you have an error in your test.js function. You shouldn't put a ;after if/else conditions, neither at the end of your function declaration. The correct syntax is:
顺便说一下，你的 test.js 函数有错误。您不应;在 if/else 条件之后放置，也不应在函数声明的末尾放置。正确的语法是：
function testing() {
if ("c" + "a" + "t" === "cat") {
document.writeln("Same");
} else {
document.writeln("Not same");
}
}
or:
或者：
var testing = function() {
if ("c" + "a" + "t" === "cat") {
document.writeln("Same");
} else {
document.writeln("Not same");
}
};
回答by user3172374
you can do like this
你可以这样做
<%@ 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">
<script type="text/javascript" src="js/index.js"></script>
<title>Insert title here</title>
</head>
<body>
<input type = "button" onclick = "javascript:testing()"/>
</body>
</html>
It is easiest
这是最简单的
