tomcat+j2sdk已经配置过
http://127.0.0.1:8080/index.jsp
可以成功运行!
而下面的程序放在和index.jsp同目录下出现错误:
exception org.apache.jasper.JasperException: Unable to compile class for JSPAn error occurred at line: 1 in the jsp file: /chineseStringExample1.jspGenerated servlet error:
[javac] Compiling 1 source fileD:\Program Files\Apache Group\Tomcat 4.1\work\Standalone\localhost\_\chineseStringExample1_jsp.java:43: illegal start of expression
public String codeToString(String str)
^An error occurred at line: 24 in the jsp file: /chineseStringExample1.jspGenerated servlet error:
D:\Program Files\Apache Group\Tomcat 4.1\work\Standalone\localhost\_\chineseStringExample1_jsp.java:69: ';' expected
else
^
2 errors
at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:85)
at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:248)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:315)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:328)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:427)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:142)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:240)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:187)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:809)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:200)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:146)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:209)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:144)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2358)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:118)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:116)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:152)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:534)--------------------------------------------------------------------------------
jsp程序全文如下:
<%@page contentType="html/text;charset=gb2312"%>
<%
public String codeToString(String str)
{
String s=str;
try
{
byte tempB[]=s.getByte("ISO=--8859-1");
s=new String(tempB);
return s;
}
catch (Exception e)
{
return s;
}
}
%>
<html>
<body>
<form name="form1" action="chineseStringExample1.jsp" method="post">
请输入你的姓名:
<input type="text" name="username">
<input type="submit" name="submit" value="提交">
</form></br>
<%
if(request.getParameter("username")==null)
out.println("你没有输入姓名!")
else
out.println("你输入的姓名是:"+codeToString(request.getParameter("username")));
%>
</body>
</html>
http://127.0.0.1:8080/index.jsp
可以成功运行!
而下面的程序放在和index.jsp同目录下出现错误:
exception org.apache.jasper.JasperException: Unable to compile class for JSPAn error occurred at line: 1 in the jsp file: /chineseStringExample1.jspGenerated servlet error:
[javac] Compiling 1 source fileD:\Program Files\Apache Group\Tomcat 4.1\work\Standalone\localhost\_\chineseStringExample1_jsp.java:43: illegal start of expression
public String codeToString(String str)
^An error occurred at line: 24 in the jsp file: /chineseStringExample1.jspGenerated servlet error:
D:\Program Files\Apache Group\Tomcat 4.1\work\Standalone\localhost\_\chineseStringExample1_jsp.java:69: ';' expected
else
^
2 errors
at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:85)
at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:248)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:315)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:328)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:427)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:142)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:240)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:187)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:809)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:200)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:146)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:209)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:144)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2358)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:118)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:116)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:152)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:534)--------------------------------------------------------------------------------
jsp程序全文如下:
<%@page contentType="html/text;charset=gb2312"%>
<%
public String codeToString(String str)
{
String s=str;
try
{
byte tempB[]=s.getByte("ISO=--8859-1");
s=new String(tempB);
return s;
}
catch (Exception e)
{
return s;
}
}
%>
<html>
<body>
<form name="form1" action="chineseStringExample1.jsp" method="post">
请输入你的姓名:
<input type="text" name="username">
<input type="submit" name="submit" value="提交">
</form></br>
<%
if(request.getParameter("username")==null)
out.println("你没有输入姓名!")
else
out.println("你输入的姓名是:"+codeToString(request.getParameter("username")));
%>
</body>
</html>
org.apache.jasper.JasperException: Unable to compile class for JSPAn error occurred at line: 1 in the jsp file: /chineseStringExample1.jspGenerated servlet error:
[javac] Compiling 1 source fileD:\Program Files\Apache Group\Tomcat 4.1\work\Standalone\localhost\_\chineseStringExample1_jsp.java:43: illegal start of expression
public String codeToString(String str)
^
1 error
at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:85)
at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:248)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:315)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:328)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:427)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:142)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:240)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:187)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:809)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:200)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:146)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:209)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:144)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2358)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:118)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:116)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:152)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:534)
out.println("你没有输入姓名!")----------------------------------------最后没有分号
后面str应加""这个.
你看看
To: yulunxing() str后面加上""后错误还在,结帖的时候给你加分继续求助!
你可以把这个方法写到一个javabean中,然后在jsp中调用
CSDN小助手是一款脱离浏览器也可以访问Csdn论坛的软件
界面:http://blog.csdn.net/Qqwwee_Com/archive/2005/11/05/523395.aspx
下载:http://szlawbook.com/csdnv2
javabean怎么写
实在是新手
然后就和在普通java程序中调用那个class一样的用法
在jsp头部加上import信息<% page import="你所写的class" %>
package StrBean;
public class toStr
{
public String codeToString(String str)
{
String s=str;
try
{
byte tempB[]=s.getByte("ISO=--8859-1");
s=new String(tempB);
return s;
}
catch (Exception e)
{
return s;
}
}}
chineseStringExample1.jsp
<%@ page..........%>
<html>
<jsp:useBean id="tostr" scope="page" class="StrBean.toStr">
<%
public String codeToString(String str)
{
这个地方改写为:
<%!
public String codeToString(String str)
{
2。 out.println("你没有输入姓名!")
这个地方改为:out.println("你没有输入姓名!");
3。byte tempB[]=s.getByte("ISO=--8859-1");
这个地方改为:
byte tempB[]=s.getBytes("ISO=--8859-1");
,
这样看看
<%!
public String codeToString(String str)这样就可以了