孙向锦 / SunvoteEducation

package com.fh.util;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import javax.servlet.http.HttpServletRequest;

import com.alibaba.druid.proxy.jdbc.ClobProxyImpl;
import com.alibaba.fastjson.JSONObject;
public class PageData extends HashMap implements Map{
	
	private static final long serialVersionUID = 1L;
	
	Map map = null;
	HttpServletRequest request;
	public PageData(HttpServletRequest request){
 		this.request = request;
		Map properties = request.getParameterMap();
		Map returnMap = new HashMap(); 
		Iterator entries = properties.entrySet().iterator(); 
		Map.Entry entry; 
		String name = "";  
		String value = "";  
		while (entries.hasNext()) {
			entry = (Map.Entry) entries.next(); 
			name = (String) entry.getKey(); 
			Object valueObj = entry.getValue(); 
			if(null == valueObj){ 
				value = ""; 
			}else if(valueObj instanceof String[]){ 
				String[] values = (String[])valueObj;
				for(int i=0;i<values.length;i++){ 
					 value = values[i] + ",";
				}
				value = value.substring(0, value.length()-1); 
			}else{
				value = valueObj.toString(); 
			}
			returnMap.put(name.toUpperCase(), value); 
		}
        try {  
            BufferedReader streamReader = new BufferedReader( new InputStreamReader(request.getInputStream(), "UTF-8"));  
            StringBuilder responseStrBuilder = new StringBuilder();  
            String body = "";  
            while ((body = streamReader.readLine()) != null){
            	responseStrBuilder.append(body);  
            }
            if(!returnMap.containsKey("JSON")){
            	returnMap.put("JSON",responseStrBuilder.toString());
            }
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
		map = returnMap;
	}
	
	public PageData() {
		map = new HashMap();
	}
	

	public String getJsonString(){
		Object obj = "";
		if(map != null){
			 obj = map.get("JSON");
		}
		
		return obj.toString() ;
	}
	
	@Override
	public Object get(Object key) {
		Object obj = null;
		if(map.get(key) instanceof Object[]) {
			Object[] arr = (Object[])map.get(key);
			obj = request == null ? arr:(request.getParameter((String)key) == null ? arr:arr[0]);
		} else {
			obj = map.get(key);
		}
		return obj;
	}
	
	public String getString(Object key) {
		Object obj = get(key);
		if(obj != null){
			return obj.toString();
		}
		return "";
	}
	
	@SuppressWarnings("unchecked")
	@Override
	public Object put(Object key, Object value) {
		if(value instanceof ClobProxyImpl){ 			//读取oracle Clob类型数据
			try {
				ClobProxyImpl cpi = (ClobProxyImpl)value;
				Reader is = cpi.getCharacterStream(); 	//获取流
				BufferedReader br = new BufferedReader(is);
				String str = br.readLine();
				StringBuffer sb = new StringBuffer();
				while(str != null){						//循环读取数据拼接到字符串
					sb.append(str);
					sb.append("\n");
					str = br.readLine();
				}
				value = sb.toString();
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
		return map.put(key, value);
	}
	
	@Override
	public Object remove(Object key) {
		return map.remove(key);
	}

	public void clear() {
		map.clear();
	}

	public boolean containsKey(Object key) {
		// TODO Auto-generated method stub
		return map.containsKey(key);
	}

	public boolean containsValue(Object value) {
		// TODO Auto-generated method stub
		return map.containsValue(value);
	}

	public Set entrySet() {
		// TODO Auto-generated method stub
		return map.entrySet();
	}

	public boolean isEmpty() {
		// TODO Auto-generated method stub
		return map.isEmpty();
	}

	public Set keySet() {
		// TODO Auto-generated method stub
		return map.keySet();
	}

	@SuppressWarnings("unchecked")
	public void putAll(Map t) {
		// TODO Auto-generated method stub
		map.putAll(t);
	}

	public int size() {
		// TODO Auto-generated method stub
		return map.size();
	}

	public Collection values() {
		// TODO Auto-generated method stub
		return map.values();
	}
	
	
	public PageData(PageData tp){
		this.map = new HashMap(tp.map);
	}
}