json使用

public static void main(String[] args) {
    
    List<Student> list=new ArrayList<>();
    
    Student student=new Student("bob",24);
    Student student12=new Student("lily", 23);
    
    list.add(student);
    list.add(student12);
    System.out.println("*******JSON.toJSONString(student)*******");
    String str1=JSON.toJSONString(student);
    System.out.println(str1);
    System.out.println(JSON.toJSONString(list));
    System.out.println();
    
    
    System.out.println("******JSON.parseObject(str1,Student.class)*******");
    //Student stu1=JSON.parseObject(str1,new TypeReference<Student>(){});
    Student stu1=JSON.parseObject(str1,Student.class);
    System.out.println(stu1);
    System.out.println();
    
    System.out.println("******j(JSONObject)JSON.toJSON(student)t******");
    JSONObject jsonObject1=(JSONObject)JSON.toJSON(student);
    System.out.println(jsonObject1.getString("name"));
    System.out.println();
    
    System.out.println("******JSON.toJavaObject(jsonObject1, Student.class)*****");
    Student student2=JSON.toJavaObject(jsonObject1, Student.class);
    System.out.println(student2);
    System.out.println();
    
    System.out.println("*******(JSONArray)JSON.toJSON(stulist)******");
    List<Student> stulist=new ArrayList<>();
    for(int i=0;i<5;i++){
      stulist.add(new Student("student"+i, i));
      
    }
    JSONArray jsonArrays=(JSONArray)JSON.toJSON(stulist);
    for(int i=0;i<jsonArrays.size();i++){
    System.out.println(jsonArrays.getJSONObject(i));
    }
    System.out.println();
    
    System.out.println("*****jjsonArrays.getJSONObject(i), Student.class*****");
    List<Student> myList=new ArrayList<>();
    for(int i=0;i<jsonArrays.size();i++){
      
    Student student3=JSON.toJavaObject(jsonArrays.getJSONObject(i), Student.class);
      myList.add(student3);
    }
    for(Student stu:myList){
      System.out.println(stu);
    }
    
          System.out.println();
    
    System.out.println("*****JSON.toJSONString(jsonObject1);*****");
    String str4=JSON.toJSONString(jsonObject1);
    System.out.println(str4);
    System.out.println();
    
    System.out.println("*******JSON.parseObject(str1);*****");
    JSONObject jso1=JSON.parseObject(str1);
    System.out.println(jso1.getString("name"));
    System.out.println();
    
    System.out.println("*****JSON.parseArray(JSON.toJSONString(stulist)*****");
    JSONArray jArray=JSON.parseArray(JSON.toJSONString(stulist));
    for(int i=0;i<jArray.size();i++){
    System.out.println(jArray.getJSONObject(i));
    }
    System.out.println();
  }