displayresmodtag.java

来自「一个关于tlms的一个小程序 看看能否帮助到别人」· Java 代码 · 共 59 行

package com.szmx.tlms.admin.web.tag;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.displaytag.tags.el.ExpressionEvaluator;

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

import com.szmx.tlms.admin.service.AdminService;
import com.szmx.tlms.admin.model.Resource;
import com.szmx.framework.spring.context.ApplicationContextUtil;

/**
 * Created by IntelliJ IDEA.
 * User: MZh
 * Date: 2006-4-20
 * Time: 14:29:13
 * To change this template use File | Settings | File Templates.
 */
public class DisplayResModTag extends TagSupport {
    private final Log log = LogFactory.getLog(getClass());
    private String modId;

    public DisplayResModTag() {
    }

    public String getModId() {
        return this.modId;
    }

    public void setModId(String modId) {
        this.modId = modId;
    }

    private void evalParams() throws JspException {
        ExpressionEvaluator eval = new ExpressionEvaluator(this, pageContext);
        this.modId = eval.evalString("modId", this.modId);
    }

    public int doStartTag() throws JspException {
        evalParams();
        AdminService service = (AdminService) ApplicationContextUtil.getBean("adminService");
        try {
            Resource res = service.getResourceModByModId(Long.valueOf(modId));
            if (res != null) {
                JspWriter out = pageContext.getOut();
                out.print(res.getName());
            }
        } catch (Exception e) {
            log.error(e);
            throw new JspException(e);
        }
        return super.doStartTag();
    }

}