How to convert JSONArray to List in Java
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- 2023-05-04 17:25:0615309browse
1: JSONArray to List
JSONArray string to List
//初始化JSONArray JSONArray array=new JSONArray(); array.add(0,"a"); array.add(1,"b"); array.add(2,"c"); List<String> list = JSONObject.parseArray(array.toJSONString(),String.class); System.out.println(list.toString());
Output result:
[a, b, c]
JSONArray object to List
//初始化JSONArray
JSONArray jsonArray = JSONArray.parseArray("[{\"name\":\"zhangsan\",\"age\":18},{\"name\":\"lisi\",\"age\":23}]");
//打印jsonArray
System.out.println(jsonArray.toJSONString());
//转List
List<Body> list = JSONArray.parseArray(jsonArray.toJSONString(), Body.class);
//打印List<Body>
System.out.println(list.toString());Body.class code:
/**
*测试实体类
**/
static class Body implements Serializable {
private static final long serialVersionUID = 1L;
private String name;
private int age;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
@Override
public String toString() {
return "Body{" +
"name='" + name + '\'' +
", age=" + age +
'}';
}
}Output result:
[{"name":"zhangsan","age":18}, {"name":"lisi","age":23}]
[Body{name='zhangsan', age=18}, Body{name='lisi', age=23}]
2: List to JSONArray
List<T> list = new ArrayList<T>(); JSONArray jsonArray = JSONArray.parseArray(JSON.toJSONString(list));
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