The server encountered an internal error () that prevented it from fulfillin
HTTP Status 500 -
--------------------------------------------
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: An exception occurred processing JSP page /register.jsp at line 9
6: if (request.getParameter("login") != null) {
7: String username = request.getParameter("username");
8: String password = request.getParameter("password");
9: float money=Float.parseFloat(request.getParameter("money"));
10: UsersVo vo = new UsersVo();
11: vo.setUsername(username);
12: vo.setPassword(password);
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:519)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:428)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
root cause
java.lang.NullPointerException
sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:991)
java.lang.Float.parseFloat(Float.java:422)
org.apache.jsp.register_jsp._jspService(register_jsp.java:65)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:386)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.32 logs.
------解决方案--------------------
float money=Float.parseFloat(request.getParameter("money"));
//此处request.getParameter("money") ==null,所以 java.lang.NullPointerException，你 debug看一下是
//不是为空
