Parse JSON format data and save it to entity class

josn The data format is as follows , I need to get text And save it to the corresponding field of the entity class and store it in the warehouse .
Change array to object first , And then josnobject To string, Calling getString() Get value

First step ： Take out value The value in , At this time, it is still an array structure

The second step ： call JSONArray.parseArray(), take json Format data into array format , This allows you to use array related methods .

We call get Method , Then it becomes object Data of type , then object Type of data to string type , That is to call tostring Method

The third step ： Then it becomes json Formatted data

Step four ： Use JSONObject.parseObject Method , Yes, it will string Translate into corresponding JSONObject object , among string yes “ Key value pair ” Formal json character string , Turn into JSONObject Object can then use its built-in methods , Such as calling getString Method

Step five ： Calling getString Method , What's coming in is key, If removed text Value


Finally, save the result of this parsing to the corresponding field of the entity class

Or traversal , The specific implementation is as follows ：

                    String lableValue = formLable.getValue();
                    JSONArray jsonArray = new JSONArray(lableValue);
                    for (int i=0;i<jsonArray.size();i++){
  // Here is to take it out text Value , And I know text Below is 2, But you can't write dead , Therefore, when taking values, you can directly jsonArray.size()-1 , Take this value . It's fine too jsonArray.get(i), In this way, it can also ensure that the last subscript represents key Namely text, Call again toString Method gets value 
                       formBusinessTravelApply.setDeptName(jsonArray.getJSONObject(jsonArray.size()-1).get("text").toString());
                    }

Understand the wrong , Welcome to correct ~