JAVA 解析复杂的json字符串

原记录在有道云笔记。

public String pddGetOrders() {

String orderidinfo=pddMap();

System.out.println(orderidinfo);

Map results = JsonToMap.parseJSON2Map(orderidinfo);

Map order= (Map) results.get("order");

System.out.println(order);

String orderCount=String.valueOf(order.get("orderCount"));

int page=Integer.valueOf((String) order.get("page"));

System.out.println(orderCount);

System.out.println(page);

JSONArray array = JSONArray.fromObject(order.get("orderList"));

System.out.println(array);

//遍历得到所有id，放进pddidslist集合里

List pddidslist=new ArrayList();

do{

for (int i = 0; i < array.size(); i++) {

Map map= (Map) array.get(i);

String orderid=(String) map.get("orderSN");

System.out.println("订单ID："+orderid);

pddidslist.add(orderid);

System.out.println(pddidslist);

}

page++;

}

while(orderCount=="100");

// pddidslist转换成数组

String[] arrays = new String[pddidslist.size()];

for (int j = 0; j < pddidslist.size(); j++) {

arrays[j] = pddidslist.get(j);

}

List psidslist = orderService.selectPddOrders(arrays);

for(int k = 0; k < psidslist.size(); k++){

String psid=psidslist.get(k).getId();

for(int j = 0; j < pddidslist.size(); j++){

if (psid.equals(pddidslist.get(j))) {

//去掉数据库中已有的

pddidslist.remove(j);

break;

}

}

}

System.out.println(pddidslist);

System.out.println("+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++");

return "redirect:";

}

public String pddMap() {

Map order = new HashMap();

Map result = new HashMap();

Map item = new HashMap();

item.put("orderSN", "151210-65418251031");

Map item1 = new HashMap();

item1.put("orderSN", "151214-77466052010");

Map item2 = new HashMap();

item2.put("orderSN", "201612251706202020995");

Map item3 = new HashMap();

item3.put("orderSN", "201612251654555555680");

List> orders = new ArrayList>();

orders.add(item);

orders.add(item1);

orders.add(item2);

orders.add(item3);

result.put("orderCount", "4");

result.put("page", "1");

result.put("result", "1");

result.put("cause", "");

result.put("orderList", orders);

order.put("order", result);

String d=JSON.toJSONString(order);

return d;

}

1. String parameter = {  
2.   success : 0,  
3.   errorMsg : "错误消息",  
4.   data : {  
5.    total : "总记录数",  
6.    rows : [ {  
7.     id : "任务ID",  
8.     workName : "任务名称",  
9.     assigneeName : "经办人姓名",  
10.     name : "流程步骤名称",  
11.     processInstanceInitiatorName : "发起人",  
12.     processInstanceStartTime : "发起时间",  
13.     createTime : "到达时间",  
14.     dueDate : "截止时间"  
15.    }, {  
16.     id : "ID",  
17.     workName : "名称",  
18.     assigneeName : "经办人",  
19.     name : "流程",  
20.     processInstanceInitiatorName : "发起人",  
21.     processInstanceStartTime : "发起",  
22.     createTime : "到达",  
23.     dueDate : "截止"  
24.    } ]  
25.   }  
26.  };  

• 1. JSONObject jsonObject =JSONObject.fromObject(parameter);  
  2.    
  3. System.out.println("success:"+jsonObject.get("success"));  
  4.   System.out.println("errorMsg:"+jsonObject.get("errorMsg"));  
  5.     
  6.   System.err.println("total:"+jsonObject.getJSONObject("data").get("total"));  
  7.     
  8.   JSONObject data = jsonObject.getJSONObject("data");  
  9.   JSONArray jsonArray = data.getJSONArray("row");  
  10.   JSONObject row = null;  
  11.   for (int i = 0; i < jsonArray.size(); i++) {  
  12.    row = jsonArray.getJSONObject(i);  
  13.    System.out.println("id:"+row.get("id"));  
  14.    System.out.println("workName:"+row.get("workName"));  
  15.    System.out.println("assigneeName:"+row.get("assigneeName"));  
  16.    System.out.println("name:"+row.get("name"));  
  17.    System.out.println("processInstanceInitiatorName:"+row.get("processInstanceInitiatorName"));  
  18.    System.out.println("processInstanceStartTime:"+row.get("processInstanceStartTime"));  
  19.    System.out.println("createTime:"+row.get("createTime"));  
  20.    System.out.println("dueDate:"+row.get("dueDate"));  
  21.   }