public class SecurityFunctions {
private static AclManager aclManager;//使用spring注入 public boolean hasPermission(int userId, String resourceSn, int permission) {
System.out.print("234==========");//这边掉不到
return aclManager.hasPermissionByResourceSn(userId, resourceSn,
permission); }
public void setAclManager(AclManager aclManager) {
SecurityFunctions.aclManager = aclManager;
}
}
my.tld
<?xml version="1.0" encoding="UTF-8" ?><taglib xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-jsptaglibrary_2_0.xsd"
version="2.0">
<tlib-version>1.0</tlib-version>
<short-name>my</short-name>
<uri>http://www.oa.com/jsp/jstl/functions</uri>
<function>
<name>hasPermission</name>
<function-class>com.tc.oa.web.SecurityFunctions</function-class>
<function-signature>boolean hasPermission(int, java.lang.String,int)</function-signature>
</function></taglib><%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@include file="/common/common.jsp" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body>
<TD height=14 align="left" vAlign=center noWrap>
<c:if test="${my:hasPermission(1,'org',CREATE) }">
<a href="#" >添加机构信息</a>
</c:if>
</TD>
</body>
</html>
Caused by: java.lang.NullPointerException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.el.parser.AstFunction.getValue(AstFunction.java:94)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:923)
at org.apache.jsp.MyJsp_jsp._jspx_meth_c_005fif_005f0(MyJsp_jsp.java:146)
at org.apache.jsp.MyJsp_jsp._jspService(MyJsp_jsp.java:117)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
... 29 more
还有web.xml也配了my.tld的位置
为什呀!
private static AclManager aclManager;//使用spring注入 public boolean hasPermission(int userId, String resourceSn, int permission) {
System.out.print("234==========");//这边掉不到
return aclManager.hasPermissionByResourceSn(userId, resourceSn,
permission); }
public void setAclManager(AclManager aclManager) {
SecurityFunctions.aclManager = aclManager;
}
}
my.tld
<?xml version="1.0" encoding="UTF-8" ?><taglib xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-jsptaglibrary_2_0.xsd"
version="2.0">
<tlib-version>1.0</tlib-version>
<short-name>my</short-name>
<uri>http://www.oa.com/jsp/jstl/functions</uri>
<function>
<name>hasPermission</name>
<function-class>com.tc.oa.web.SecurityFunctions</function-class>
<function-signature>boolean hasPermission(int, java.lang.String,int)</function-signature>
</function></taglib><%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@include file="/common/common.jsp" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body>
<TD height=14 align="left" vAlign=center noWrap>
<c:if test="${my:hasPermission(1,'org',CREATE) }">
<a href="#" >添加机构信息</a>
</c:if>
</TD>
</body>
</html>
Caused by: java.lang.NullPointerException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.el.parser.AstFunction.getValue(AstFunction.java:94)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:923)
at org.apache.jsp.MyJsp_jsp._jspx_meth_c_005fif_005f0(MyJsp_jsp.java:146)
at org.apache.jsp.MyJsp_jsp._jspService(MyJsp_jsp.java:117)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
... 29 more
还有web.xml也配了my.tld的位置
为什呀!
这个可能为空的,没有被注入吧。