jsp访问javaBean是出错帮帮忙多谢
日期：2014-05-20 浏览次数：20787 次
jsp访问javaBean是出错帮帮忙谢谢!
package ss;
public class ssbean
{
String Mm= "xxx ";
public String getMm()
{
return (this.Mm);
}
public void setMm(String Mm)
{
this.Mm = Mm;
}
}
---------------------------------
<%@ page contentType= "text/html;charset=GBK " language= "java " %>
<html>
<head>
<title> Reusing javaBeans in JSP </title>
</head>
<body>
<%@ page import= "ss.ssbean " %>
<center>
<table border= "1 ">
<tr>
<td>
<jsp:useBean id= "ss " scope= "application " class= "ss.ssbean " />
<jsp:setProperty name= "ss " property= "Mm " value= "Hello " />
<h1> 通过属性值：
<i> <jsp:getProperty name= "ss " property= "Mm " /> </i>
</h1>
<jsp:setProperty name= "ss " property= "Mm " value= "Hello www " />
<h1> 通过显现方式获取属性值：
<i> ${ss.Mm} </i> <br/>
</h1>
</td>
</tr>
</table>
</center>
</body>
</html>
ssbean.java文件我是在\WEB-INF\classes\ss编译的怎么还是出错
朋友们帮帮忙!!!!!错误信息为
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Cannot find any information on property 'Mm ' in a bean of type 'ss.ssbean '
org.apache.jasper.runtime.JspRuntimeLibrary.getReadMethod(JspRuntimeLibrary.java:837)
org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1015)
org.apache.jasper.compiler.Node$GetProperty.accept(Node.java:1062)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Generator.generate(Generator.java:3272)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:244)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:495)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:476)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:464)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
------解决方案--------------------
java编码规范：类名首字母大写，其它的首字母均小写。
虽然在一般的java程序中可以随意写，但是很多java组件都遵循这个规范，所以养成良好的编码习惯是很有必要的。
我的异常网推荐解决方案：The server encountered an internal error () that prevented it from fulfilling this request.,http://www.myexception.cn/java-web/317.html
package ss;
public class ssbean
{
String Mm= "xxx ";
public String getMm()
{
return (this.Mm);
}
public void setMm(String Mm)
{
this.Mm = Mm;
}
}
---------------------------------
<%@ page contentType= "text/html;charset=GBK " language= "java " %>
<html>
<head>
<title> Reusing javaBeans in JSP </title>
</head>
<body>
<%@ page import= "ss.ssbean " %>
<center>
<table border= "1 ">
<tr>
<td>
<jsp:useBean id= "ss " scope= "application " class= "ss.ssbean " />
<jsp:setProperty name= "ss " property= "Mm " value= "Hello " />
<h1> 通过属性值：
<i> <jsp:getProperty name= "ss " property= "Mm " /> </i>
</h1>
<jsp:setProperty name= "ss " property= "Mm " value= "Hello www " />
<h1> 通过显现方式获取属性值：
<i> ${ss.Mm} </i> <br/>
</h1>
</td>
</tr>
</table>
</center>
</body>
</html>
ssbean.java文件我是在\WEB-INF\classes\ss编译的怎么还是出错
朋友们帮帮忙!!!!!错误信息为
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Cannot find any information on property 'Mm ' in a bean of type 'ss.ssbean '
org.apache.jasper.runtime.JspRuntimeLibrary.getReadMethod(JspRuntimeLibrary.java:837)
org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1015)
org.apache.jasper.compiler.Node$GetProperty.accept(Node.java:1062)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Generator.generate(Generator.java:3272)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:244)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:495)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:476)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:464)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
------解决方案--------------------
java编码规范：类名首字母大写，其它的首字母均小写。
虽然在一般的java程序中可以随意写，但是很多java组件都遵循这个规范，所以养成良好的编码习惯是很有必要的。
我的异常网推荐解决方案：The server encountered an internal error () that prevented it from fulfilling this request.,http://www.myexception.cn/java-web/317.html
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