自定义jsp标签管理按钮权限
1：自定入jsp标签，放入WEB-INF下,标签名为:buttonPower.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">
<description>buttonPower core library</description>
<display-name>buttonPower core</display-name>
<tlib-version>1.1</tlib-version>
<short-name>centfor</short-name>
<uri>http://www.asia-home.com.cn/buttonPower</uri>
<tag>
<description>按钮参数</description>
<name>buttonList</name>
<tag-class>com.asia.home.cn.web.tag.power.ButtonTag</tag-class>
<body-content>JSP</body-content>
<attribute>
<name>bindPowerName</name>
<required>true</required>
<rtexprvalue>true</rtexprvalue>
</attribute>
</tag>
</taglib>



2：ButtonTag 标签类
   package com.asia.home.cn.web.tag.power;

import java.util.List;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;

import org.apache.log4j.Logger;
import org.springframework.context.ApplicationContext;

import com.asia.home.cn.base.BaseEnvironment;
import com.asia.home.cn.buttonManage.ButtonManage;
import com.asia.home.cn.services.buttonManage.IButtonManageService;

public class ButtonTag extends TagSupport {

    private static final long serialVersionUID = 1L;
    private IButtonManageService buttonService;
    Logger InfoLogger = Logger.getLogger("loginfo");
    private String bindPowerName;
   
    protected void init() {
        if(buttonService == null){
            ApplicationContext applicationContext = BaseEnvironment.getApplicationContext();
            buttonService = (IButtonManageService) applicationContext.getBean("buttonService");
        }
    }
    @Override
    public int doStartTag() throws JspException {
        init();
        try {
            String fsRightId = queryUserButtonPower(bindPowerName);
            ButtonManage buttonParam = null;
            if(fsRightId!=null){
                buttonParam = buttonService.queryButtonByPowerId(fsRightId);
            }
            if (buttonParam==null) {
                pageContext.getRequest().setAttribute("flag", 0);
                return EVAL_BODY_INCLUDE;
            }
            pageContext.getRequest().setAttribute("buttonParam", buttonParam);
        } catch (Exception e) {