-1
沒有任何一個請幫我出這個錯誤的下面JSP登錄頁面錯誤
類型異常報告 消息
說明服務器遇到內部錯誤(),阻止其完成此請求。 例外
org.apache.jasper.JasperException:10在jsp文件:無法編譯類JSP:在行發生
錯誤/login.jsp 用戶名不能被解析爲一個變量
與login.jsp的文件一起下面列出的錯誤
的login.jsp
<%@ page import="java.sql.*"%>
<%
String userName = request.getParameter("username");
String password = request.getParameter("password");
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://50.62.23.184:3306/gtuser_sched1",
"gtuser_grp1", "capmap");
Statement st = con.createStatement();
ResultSet rs;
rs = st.executeQuery("select * from users where userName='" +username + "' and password='" +password + "'");
if (rs.next()) {
session.setAttribute("userid", userName);
response.sendRedirect("success.jsp");
} else {
out.println("Invalid password <a href='index.jsp'>try again</a>");
}
%>
異常
exception
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 10 in the jsp file: /login.jsp
username cannot be resolved to a variable
7: "gtuser_grp1", "Capstone1");
8: Statement st = con.createStatement();
9: ResultSet rs;
10: rs = st.executeQuery("select * from users where userName='" +username + "' and password='" +password + "'");
11: if (rs.next()) {
12: session.setAttribute("userid", userName);
13: response.sendRedirect("success.jsp");
Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:446)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:362)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:327)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:607)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:312)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:326)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:253)
javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
note The full stack trace of the root cause is available in the JBoss Web/7.0.10.Final
login.jsp//file where im providing login credentials
<%@ page import="java.sql.*"%>
<%
String userName = request.getParameter("username");
String password = request.getParameter("password");
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://50.62.23.184:3306/gtuser_sched1",
"gtuser_grp1", "capmap");
Statement st = con.createStatement();
ResultSet rs;
rs = st.executeQuery("select * from users where userName='" +username + "' and password='" +password + "'");
if (rs.next()) {
session.setAttribute("userid", userName);
response.sendRedirect("success.jsp");
} else {
out.println("Invalid password <a href='index.jsp'>try again</a>");
}
%>
這是錯誤顯示
exception
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 10 in the jsp file: /login.jsp
username cannot be resolved to a variable
7: "gtuser_grp1", "Capstone1");
8: Statement st = con.createStatement();
9: ResultSet rs;
10: rs = st.executeQuery("select * from users where userName='" +username + "' and password='" +password + "'");
11: if (rs.next()) {
12: session.setAttribute("userid", userName);
13: response.sendRedirect("success.jsp");
Stacktrace:
\t org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
\t org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
\t org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:446)
\t org.apache.jasper.compiler.Compiler.compile(Compiler.java:362)
\t org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
\t org.apache.jasper.compiler.Compiler.compile(Compiler.java:327)
\t org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:607)
\t org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:312)
\t org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:326)
\t org.apache.jasper.servlet.JspServlet.service(JspServlet.java:253)
\t javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
note The full stack trace of the root cause is available in the JBoss Web/7.0.10.Final logs
<!-- begin snippet: js hide: false -->
我敢打賭,你現在已經找到了'用戶名'和'用戶名'的錯字。不妨刪除這個問題,因爲這只是一個印刷錯誤,並且也存在JavaScript片段標籤的問題。 – Arjan 2016-08-23 06:11:09