【Java开源代码栏目提醒】:本文主要为网学会员提供CheckLogonTag.java,希望对需要CheckLogonTag.java网友有所帮助,学习一下!
package org.mmxbb.exam.business;
import java.io.IOException;
import javax.servlet.http.HttpSession;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.TagSupport;
import org.mmxbb.exam.dao.ExamineeDAO;
public class CheckLogonTag
extends TagSupport {
private LogonBean logonBean = new LogonBean();
private String logon = "logon";
private String page = "/index.jsp";
private String role = "";
private String display = "false";
private String logonInfo = "";
public String getLogon() {
return logon;
}
public void setLogon(String logon) {
this.logon = logon;
}
public String getPage() {
return page;
}
public void setPage(String page) {
this.page = page;
}
public String getRole() {
return role;
}
public void setRole(String role) {
this.role = role;
}
public String getDisplay() {
return display;
}
public void setDisplay(String display) {
this.display = display;
}
public int doStartTag() throws JspException {
return (SKIP_BODY);
}
public int doEndTag() throws JspException {
ExamineeDAO eDAO = null;
String examinee_id = null;
String examinee_name = null;
boolean valid = false;
HttpSession session = pageContext.getSession();
if ( (session != null) && (session.getAttribute(logon) != null)) {
try {
logonBean = (LogonBean) session.getAttribute(logon);
examinee_id = logonBean.getLogon();
eDAO = new ExamineeDAO();
examinee_name = eDAO.findByKey(examinee_id).getName();
this.logonInfo = examinee_id + " 考生:" + examinee_name + " ";
if (CheckRole(role, logonBean)) {
valid = true;
}
} catch (Exception e) {
valid = false;
}
}
// Forward control based on the results
if (valid) {
return (EVAL_PAGE);
} else {
try {
pageContext.forward(page);
} catch (Exception e) {
throw new JspException(e.toString());
}
return (SKIP_PAGE);
}
}
public boolean CheckRole(String role, LogonBean logonBean) {
if ( (role.equals("admin") && logonBean.isAuthority()) ||
( (role.equals("user")) && (logonBean.getLogon() != null) ||
(! ("".equals(logonBean.getLogon()))))) {
if ("true".equals(display)) {
print(logonInfo);
}
return true;
} else {
return false;
}
}
private void print(String text) {
JspWriter writer = pageContext.getOut();
try {
writer.print(text);
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* Release any acquired resources.
*/
public void release() {
super.release();
this.logon = "logon";
this.page = "/index.jsp";
}
public String getLogonInfo() {
return logonInfo;
}
public void setLogonInfo(String logonInfo) {
this.logonInfo = logonInfo;
}
}
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