org.apache.jasper.JasperException: Unable to compile class for JSP
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:572)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:305)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
com.jspdev.ch8.EncodingFilter.doFilter(EncodingFilter.java:36)源程序如下:
import java.io.IOException;import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;public class EncodingFilter implements Filter {
protected FilterConfig filterconfig;
private String targetEncoding = "gb2312"; public void init(FilterConfig config) throws ServletException {
this.filterconfig = config;
this.targetEncoding = config.getInitParameter("encoding"); } public void doFilter(ServletRequest srequest, ServletResponse sresponse,
FilterChain chain) throws IOException, ServletException {
HttpServletRequest request = (HttpServletRequest)srequest;
request.setCharacterEncoding(targetEncoding);
chain.doFilter(srequest,sresponse);
}
public void setFilterConfig(final FilterConfig filterConfig){
this.filterconfig=filterConfig;
} public void destroy() {
this.filterconfig = null; }}
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:572)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:305)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
com.jspdev.ch8.EncodingFilter.doFilter(EncodingFilter.java:36)源程序如下:
import java.io.IOException;import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;public class EncodingFilter implements Filter {
protected FilterConfig filterconfig;
private String targetEncoding = "gb2312"; public void init(FilterConfig config) throws ServletException {
this.filterconfig = config;
this.targetEncoding = config.getInitParameter("encoding"); } public void doFilter(ServletRequest srequest, ServletResponse sresponse,
FilterChain chain) throws IOException, ServletException {
HttpServletRequest request = (HttpServletRequest)srequest;
request.setCharacterEncoding(targetEncoding);
chain.doFilter(srequest,sresponse);
}
public void setFilterConfig(final FilterConfig filterConfig){
this.filterconfig=filterConfig;
} public void destroy() {
this.filterconfig = null; }}
有错误吗?请把行号标出来
另外我这的一份filter源码是继承了HttpServlet的
public class SetCharacterEncodingFilter extends HttpServlet implements Filter
而是doFilter发现了你的jsp有错,
好好在jsp里面找找,
或者贴出来让大家帮你找~
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %><%@ page contentType="text/html; charset=gb2312" language="java" %><html><head>
<title>JSTL:的使用</title></head><body bgcolor="#FFFFFF">
<c:set var="test" value="sdkfjksdj" scope="request"/>
<c:redirect url="re.jsp"><c:param name="userName" value="sdklfjsdklj"> </c:param>
</c:redirect>
</body>
</html>
re.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %><%@ page contentType="text/html; charset=gb2312" language="java" %><c:out value="${param.userName}"/>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
前面有一个JSP的路径 我写漏了