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  • 使用数组构建 ExtJs TreeStore 结构

    	/**
    	 * 构建 ExtJS Tree 使用的Store
    	 * @param prentid
    	 * @param jsArr
    	 * @return
    	 */
    	public static JSONArray buildStore4ExtTree(int prentid, JSONArray jsArr){
    		JSONArray retArray = new JSONArray();
    		for (int i = 0; i < jsArr.size(); i++) {
    			JSONObject obj = jsArr.getJSONObject(i);
    			if(prentid == obj.getIntValue("pid")){
    				retArray.add(obj);
    			}
    		}
    		
    		for (int i = 0; i < retArray.size(); i++) {
    			JSONObject obj = retArray.getJSONObject(i);
    			JSONArray tmpArr = buildStore4ExtTree(obj.getIntValue("id"),jsArr);
    			if(!tmpArr.isEmpty()){
    				obj.put("children", tmpArr);
               obj.put("leaf",0);
            }
    		}
    		return retArray;
    	}
    	
    	public static void main(String[] args) {
    		JSONObject obj1 = new JSONObject();
    		obj1.put("pid", 0);
    		obj1.put("id", 1);
    		obj1.put("name", "name1");
    		
    		JSONObject obj2 = new JSONObject();
    		obj2.put("pid", 0);
    		obj2.put("id", 2);
    		obj2.put("name", "name2");
    		
    		JSONObject obj3 = new JSONObject();
    		obj3.put("pid", 2);
    		obj3.put("id", 3);
    		obj3.put("name", "name3");
    		
    		JSONObject obj4 = new JSONObject();
    		obj4.put("pid", 2);
    		obj4.put("id", 4);
    		obj4.put("name", "name4");
    		
    		JSONObject obj5 = new JSONObject();
    		obj5.put("pid", 4);
    		obj5.put("id", 5);
    		obj5.put("name", "name5");
    		
    		JSONObject obj6 = new JSONObject();
    		obj6.put("pid", 5);
    		obj6.put("id", 6);
    		obj6.put("name", "name6");
    		
    		JSONObject obj7 = new JSONObject();
    		obj7.put("pid", 6);
    		obj7.put("id", 7);
    		obj7.put("name", "name7");
    		
    		JSONObject obj8 = new JSONObject();
    		obj8.put("pid", 5);
    		obj8.put("id", 8);
    		obj8.put("name", "name8");
    		
    		
    		JSONObject obj9 = new JSONObject();
    		obj9.put("pid", 4);
    		obj9.put("id", 9);
    		obj9.put("name", "name9");
    		
    		JSONObject obj10 = new JSONObject();
    		obj10.put("pid", 6);
    		obj10.put("id", 10);
    		obj10.put("name", "name10");
    		
    		JSONObject obj11 = new JSONObject();
    		obj11.put("pid", 5);
    		obj11.put("id", 11);
    		obj11.put("name", "name11");
    		
    		
    		JSONObject obj12 = new JSONObject();
    		obj12.put("pid", 10);
    		obj12.put("id", 12);
    		obj12.put("name", "name12");
    		
    		JSONArray arr = new JSONArray();
    		
    		arr.add(obj1);
    		arr.add(obj2);
    		arr.add(obj3);
    		arr.add(obj4);
    		arr.add(obj5);
    		arr.add(obj6);
    		arr.add(obj7);
    		arr.add(obj8);
    		arr.add(obj9);
    		arr.add(obj10);
    		arr.add(obj11);
    		arr.add(obj12);
    		
    		System.out.println(buildStore4ExtTree(0,arr));
    		
    	}
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  • 原文地址:https://www.cnblogs.com/icenter/p/2100513.html
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