keel_jdbc1.0 (jdk1.5+Extjs4.0) web项目_包含前后台源码

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 [Extjs4.0] keel_jdbc2.0后台管理模块 (包含前后台源码)

地址如下:

 http://czpae86.iteye.com/blog/1058754

 

项目源码见附件!! 

 

安装方法:

1,导入jar包.用到的jar包如下,请自己在网上下载,都是比较常见的.

 

2,还原数据库(在附件"keel数据库备份.rar"上)数据库使用的是MS SERVER 2005,

如果更改数据库请添加相应的jar包,和修改db.properties文件.

 

3,部署到tomcat(本人使用的是tomcat5.0)

 

4,启动tomcat,浏览器输入,如http://localhost:8080/keel_jdbc1.0/  (端口自己按实际情况更改)

 

5,帐号,密码都为(admin)

 

 

 

版本 V1.0

1:前台界面暂时只有登录,后续版本会增加复杂的页面!(用Extjs已经3年)

2:后台主要如下

 

 

一,通过一个servlet作为前后台交互入口,代码如下:

 

 

package keel.util;

import java.io.IOException;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.InvalidPropertiesFormatException;
import java.util.Map;
import java.util.Properties;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;

/**
 * 前后台交互入口
 * @author 蔡治平
 * @since 2011-04-23
 */
public class KeelServlet extends HttpServlet {
	private Logger logger = Logger.getLogger(KeelServlet.class);
	private final String doGetMethod = "doGet";
	private final String doPostMethod = "doPost";
	private final String classConfigPath = "classConfig.xml";
	
	/**
	 * 通过get方法提交将会调用该方法
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		response.setContentType("text/html;charset=utf-8");
		dataOut(request, response, doGetMethod);
	}
	
	/**
	 * 通过post方法提交将会调用该方法
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		response.setContentType("text/html;charset=utf-8");
		//response.setCharacterEncoding("UTF-8");
		request.setCharacterEncoding("UTF-8");
		
		dataOut(request, response, doPostMethod);
	}
	
	/**
	 * 打包提交的参数
	 * @param request
	 * @param method
	 * @return Map
	 */
	private Map<String,Object> dataInToMap(HttpServletRequest request,String method){
		Enumeration names = request.getParameterNames();
		Map<String,Object> map = new HashMap<String, Object>();
		while(names.hasMoreElements()){
			String name = names.nextElement().toString();
			String value = request.getParameter(name);
			if(method.equals(doGetMethod)){
				try {
					byte [] bytes = value.getBytes("ISO-8859-1");
					map.put(name, new String(bytes,"UTF-8"));
				} catch (UnsupportedEncodingException e) {
					logger.error("打包提交参数出现异常,原因:"+e);
				}
			}else{
				map.put(name, value);
			}		
		}
		return map;
	}
	/**
	 * 获得类名
	 * @param name
	 * @return String
	 */
	private String getClassName(String name){
		Properties prop = new Properties();
		String clsName = "";
		try {
			prop.loadFromXML(Thread.currentThread().getContextClassLoader().getResourceAsStream(classConfigPath));//this.getClass().getClassLoader().getResourceAsStream(classConfigPath)
			clsName = prop.getProperty(name);
			if(clsName==null){
				logger.error(classConfigPath+"配置中没有定义key="+name);
			}else if(clsName.trim().equals("")){
				logger.error(classConfigPath+"配置中key="+name+"的值为空");
			}else{
				logger.info("从"+classConfigPath+"中成功获取类配置key="+name+"-->"+clsName);
			}
		} catch (InvalidPropertiesFormatException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
		return clsName;
	}
	
	/**
	 * 该方法打包前台提交参数,通过映射调用方法,然后返回结果到前台
	 * @param request
	 * @param response
	 * @param method
	 */
	@SuppressWarnings("unchecked")
	private void dataOut(HttpServletRequest request, HttpServletResponse response, String method){
		Map dataIn = this.dataInToMap(request,method);
		dataIn.put("session", request.getSession());
		String clsName = getClassName(request.getParameter("clsName"));
		String methodName = request.getParameter("methodName");
		Map dataOut = CallMethod.callMethod(clsName, methodName, dataIn);
		String k = (String) dataOut.get("dataOut");
		
		PrintWriter out;
		try {
			out = response.getWriter();
			out.print(k);
			out.flush();
			out.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
		
	}
	
}

 

 

二,前台传入类别名(classConfig.xml中配置),方法名,通过反射执行类方法

 

 

package keel.util;


import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Map;

/**
 * 通过反射执行类方法
 * @author 蔡治平
 * @since 2011-04-23
 */
public class CallMethod {
	public static Map callMethod(String clsName,String method, Map<String,Object> dataIn)
    {

        Class cls = null;
        try
        {
            cls = Class.forName(clsName);
        }
        catch (ClassNotFoundException e)
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        Class partypes[] = new Class[1];
        partypes[0] = Map.class;
        Method meth = null;
        try
        {
            meth = cls.getMethod(method, partypes);
        }
        catch (SecurityException e)
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        catch (NoSuchMethodException e)
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        Object returnValue = null;
        try
        {
        	returnValue = meth.invoke(cls.newInstance(), dataIn);
        }
        catch (InstantiationException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
        catch (IllegalArgumentException e)
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        catch (IllegalAccessException e)
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        catch (InvocationTargetException e)
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        Map dataOut = (Map) returnValue;

        return dataOut;
    }
}

 

 

三,一个数据库连接池和一些数据库操作的封装,代码请看附件项目.

 

希望有你想要的东西! 请多给意见!

注意:该项目没有用到hibernate,spring,struts,dwr等框架!!