jobsimpledesctag.java

办公自动化项目

package com.t60.oa.web.tag;

import javax.servlet.jsp.tagext.*;
import javax.servlet.jsp.*;
import java.io.*;
import org.apache.commons.beanutils.PropertyUtils;
import java.lang.reflect.*;
public class JobSimpleDescTag extends BodyTagSupport {
private String name;
private String property;
private String length;
  public int doStartTag() throws JspException {

      Object obj = this.pageContext.findAttribute(name);
     if (obj == null) {
       return 0;
     }


     Object value = null;

     if(this.property != null) {
         try {
           value = PropertyUtils.getNestedProperty(obj, this.property);
         }
         catch (Exception ex) {
         }
     }
     else
       value = obj;
     if (value == null) {
       return 0;
     }
     javax.servlet.jsp.JspWriter out = this.pageContext.getOut();
     String str = (String) value;
  //   Object pr= this.pageContext.findAttribute(length);
     if(this.length==null ||this.length.length()>0)
     {
        try {
          out.print(str);
        }
        catch (IOException ex2) {
        }
       return 0;
     }



     try {
       int lg=Integer.parseInt(this.length);
       if (str.length() > lg) {
         out.print(str.substring(0,lg));
       }

       else {
         out.print(str);
       }
     }
     catch (IOException ex1) {
      try {
        out.print(str);
      }
      catch (IOException ex3) {
      }
     }
     return 0;

  }

  public String getLength() {
    return length;
  }

  public String getName() {
    return name;
  }

  public String getProperty() {
    return property;
  }

  public void setProperty(String property) {
    this.property = property;
  }

  public void setName(String name) {
    this.name = name;
  }

  public void setLength(String length) {
    this.length = length;
  }
}