getusercity.java

java+strus+jdbc开发的一个网上书店系统,包括后台管理

package com.wang.tags;

import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.BodyTagSupport;
import com.wang.db.MyDb;
import java.io.IOException;
import javax.servlet.jsp.tagext.BodyContent;

public class GetUserCity extends BodyTagSupport
{
    JspWriter out = null;
    public int doAfterBody()
    {
        BodyContent body = getBodyContent();
        String content = body.getString();
        out = body.getEnclosingWriter();
        MyDb db = new MyDb();
        int userId = Integer.parseInt(content);
        int cityId=db.getUser(userId).getUserCity();
        String name = db.getCity(cityId);
        db.Close();
        try
        {
            out.print(name);
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
        return (SKIP_BODY);
    }
}