我遇到了運行使用java類的jsp文件的問題。該jsp文件被稱爲temp.jsp。我已經把我的JSP文件在根文件夾Tomcat服務器 上的類在ROOT/WEB-INF /班/ COM/JAVA發現/ tempBean.classJSP頁面無法工作:java.lang.ClassNotFoundException:org.apache.jsp和useBean類屬性的值無效
這裏是所有從我的臨時代碼。 JSP文件:
<jsp:useBean id="report" class="com.java.tempBean" scope="page">
</jsp:useBean>
這是所有從我tempBean.class文件中的代碼(類是空的 - 我只是想在一瞬間產生沒有錯誤!)
package com.java;
public class tempBean
{
public tempBean()
{
}
}
當我嘗試打開jsp頁面,我得到了以下錯誤(刷新之間我得到第一或第二錯誤)
org.apache.jasper.JasperException: /temp.jsp (line: 1, column: 1) The value for the useBean class attribute com.java.tempBean is invalid.
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:41)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:148)
org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1229)
org.apache.jasper.compiler.Node$UseBean.accept(Node.java:1182)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2434)
org.apache.jasper.compiler.Node$Root.accept(Node.java:475)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)
org.apache.jasper.compiler.Generator.generate(Generator.java:3485)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:249)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:372)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:352)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:339)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:601)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:344)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:389)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:333)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
OR
exception
org.apache.jasper.JasperException: java.lang.ClassNotFoundException: org.apache.jsp.temp_jsp
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:168)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:356)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:389)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:333)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
root cause
java.lang.ClassNotFoundException: org.apache.jsp.temp_jsp
java.net.URLClassLoader$1.run(URLClassLoader.java:200)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(URLClassLoader.java:188)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:132)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:63)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:162)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:356)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:389)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:333)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
任何幫助,非常感謝:)謝謝!
嘗試使用'type'屬性而不是'class'屬性。 http://stackoverflow.com/questions/545177/the-value-for-the-usebean-class-attribute-is-invalid/1764211#1764211 – gigadot
將屬性更改爲類型:現在獲取此異常: org.apache。 jasper.JasperException:無法爲JSP編譯類: jsp文件中行1出錯:/temp.jsp com.java.TempBean無法解析爲類型 1: 2: jsp:useBean> –
JigglyPuff