JSP文件无法检测用户定义的Java文件。请解决。

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英文:

JSP File is not detect user defined java files. Please resolve

问题

我正在尝试在JSP中使用.java文件。但是它无法实现。
我不知道为什么用户定义的.java文件在index.JSP中无法被检测到。
尽管预定义的java文件我可以在index.JSP中使用。

如何解决这个问题?

英文:

I am trying to use .java files into JSP. But it is not able to do so.
I don't know why user defined .java files are not detected in index.JSP.
Although, pre-defined java files I am able to use in index.JSP.

How to resolve this issue?

JSP文件无法检测用户定义的Java文件。请解决。

JSP文件无法检测用户定义的Java文件。请解决。

答案1

得分: 0

尝试这样做:

<%@page contentType="text/html" pageEncoding="UTF-8"
   import="com.demo.help.MyTester" %>

<% MyTester test = new MyTester(); %>

通过这个示例,我只是想告诉你要使用页面指令并从定义它的包中导入类文件。

这里我的类文件名是MyTester.java,位于名为com.demo.help的包中,而这个包在src/main/resources文件夹内。

英文:

Try this:

&lt;%@page contentType=&quot;text/html&quot; pageEncoding=&quot;UTF-8&quot;
   import=&quot;com.demo.help.MyTester&quot; %&gt;

&lt;% MyTester test= new MyTester() %&gt;

By this I just wanted to tell you to use page directive and import the class file from the package whereever you have defined it.

Here my class file name is MyTester.java which is located in package named com.demo.help and this package is inside src/main/resources folder.

答案2

得分: 0

I impoerted:
<%@page import="com.jatin.learningblog.helper.*"%>
then I am using.
But it is showing error, don't know why

Code of ConnectionProvider.java for reference

Still not working

英文:

I impoerted:
<%@page import="com.jatin.learningblog.helper.*"%>
then I am using.
But it is showing error, don't know why

Code of ConnectionProvider.java for reference

Still not working

答案3

得分: 0

请确保像这样将Java文件导入jsp中:

<%@page import="Model.Car, Services.*"%>
或者
<%@page import="Model.Car"%>
<%@page import="Services.*"%>

<%Car bmw = new Car();%>
<%=bmw.id%>
<%CarServices.getBrand();%>
英文:

Make sure to import Java files into the jsp like that:

&lt;%@page import=&quot;Model.Car, Services.*&quot;%&gt;
or
&lt;%@page import=&quot;Model.Car&quot;%&gt;
&lt;%@page import=&quot;Services.*&quot;%&gt;


&lt;%Car bmw = new Car();%&gt;
&lt;%=bmw.id%&gt;
&lt;%CarServices.getBrand();%&gt;

huangapple
  • 本文由 发表于 2020年7月27日 14:01:07
  • 转载请务必保留本文链接:https://java.coder-hub.com/63109458.html
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