按大侠所说去调试,但又有新的犯错误呀org.apache.jasper.JasperException: Unable to compile class for JSPNo Java compiler was found to compile the generated source for the JSP. This can usually be solved by copying manually $JAVA_HOME/lib/tools.jar from the JDK to the common/lib directory of the Tomcat server, followed by a Tomcat restart. If using an alternate Java compiler, please check its installation and access path. org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:87) org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:311) org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:378) org.apache.jasper.compiler.Compiler.compile(Compiler.java:421) org.apache.jasper.compiler.Compiler.compile(Compiler.java:402) org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:512) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:262)
double salary=0;
try{
salary=Double.parseDouble((String)request.getParameter("salary"));
}
catch(Exception e){}
%>这边少了个括号
上面的import建议分开来写,有的包我这没有,不好调试了
This can usually be solved by copying manually $JAVA_HOME/lib/tools.jar from the JDK
to the common/lib directory of the Tomcat server, followed by a Tomcat restart.
If using an alternate Java compiler, please check its installation and access path. org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:87)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:311)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:378)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:421)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:402)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:512)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:262)