我没写try catch，为什么会报这样的错误？

[yuvictory]

Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: Unable to compile class for JSP

Generated servlet error:
D:\Tomcat 5.0\work\Catalina\localhost\GIIS\org\apache\jsp\search_005fdo1_jsp.java:359: "catch" 不带有 "try"
} catch (Throwable t) {
^


Generated servlet error:
D:\Tomcat 5.0\work\Catalina\localhost\GIIS\org\apache\jsp\search_005fdo1_jsp.java:35: "try" 不带有 "catch" 或 "finally"
try {
^


Generated servlet error:
D:\Tomcat 5.0\work\Catalina\localhost\GIIS\org\apache\jsp\search_005fdo1_jsp.java:371: 需要 '}'
^
3 错误



org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:332)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:412)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
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)


note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.

[pcno1]

花括号不配对

[allright_flash]

贴代码看看

[allright_flash]

{}不匹配

[yuvictory]

是{}不匹配！我改好了！
String tt = (String)request.getSession().getAttribute("t");
int t=Integer.parseInt(tt);
大家给我看看上面的类型转换有问题不？

[allright_flash]

对呀
http://www.blogjava.net/pirate/archive/2005/07/27/8549.aspx
看看

[yuvictory]

org.apache.jasper.JasperException: java.lang.Integer
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:372)
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)


root cause

java.lang.ClassCastException: java.lang.Integer
org.apache.jsp.search_005fdo1_jsp._jspService(search_005fdo1_jsp.java:82)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
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)

可是报这种错误呢！

[行近远山]

可能是整型强制转换出错

[slingnong]

java.lang.ClassCastException: java.lang.Integer转换类型前后不一致

[computech_newRen]

String tt = request.getSession().getAttribute("t").toString;
int t=Integer.parseInt(tt);

[slingnong]

String tt = (String)request.getSession().getAttribute("t");
int t=Integer.parseInt(tt);
大家给我看看上面的类型转换有问题不？
>>>在JSP中这样写：
String tt = (String)session.getAttribute("t");

[slingnong]

你在session.setAttribute("t",object);
object类型如果是String应该没问题，如果是Integer，你得这样：
Integer t = (Integer)session.getAttribute("t");
int tt=t.intValue();

[slingnong]

问题就出在>>>String tt = (String)request.getSession().getAttribute("t");
这里了

[yuvictory]

slingnong() :谢谢！是您说的那样！

[方健的专栏]

同意楼上的，另外lz看一下返回类型

[yuvictory]

accp_fangjian(淡雅知己)：谢谢，可是我已经结贴了，没法给分了，不好意思啊！