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一:测试json数据如下:
- {
- 'cat':'it',
- 'language':[
- {'id':1,'ide':'eclipse','name':'Java'},
- {'id':2,'ide':'XCode','name':'Swift'},
- {'id':3,'ide':'Visual Stdio','name':'C#'}
- ],
- 'pop':true
- }
二:新建Student类,
- public class Student {
- String name;
- int id;
- String ide;
- public String getName() {
- return name;
- }
- public void setName(String name) {
- this.name = name;
- }
- public int getId() {
- return id;
- }
- public void setId(int id) {
- this.id = id;
- }
- public String getIde() {
- return ide;
- }
- public void setIde(String ide) {
- this.ide = ide;
- }
- @Override
- public String toString() {
- return "Student [name=" + name + ", id=" + id + ", ide=" + ide + "]";
- }
- }

三:接下来用fastjson进行解析,
- public class TestJson {
-
- public static void main(String[] args) {
- String jsonStr = "{'cat':'it','language':[{'id':1,'ide':'eclipse','name':'Java'},{'id':2,'ide':'XCode','name':'Swift'},{'id':3,'ide':'Visual Stdio','name':'C#'}],'pop':true}";
- JSONObject jsonObject = JSONObject.parseObject(jsonStr);
- JSONArray jsonArray = jsonObject.getJSONArray("language");
- for (int i = 0; i < jsonArray.size(); i++) {
- JSONObject object = jsonArray.getJSONObject(i);
- String name = object.getString("name");
- String ide = object.getString("ide");
- int id = object.getIntValue("id");
- Student stu = new Student();
- stu.setId(id);
- stu.setIde(ide);
- stu.setName(name);
- System.out.println(stu.toString());
- }
- }
- }

四:fastjson还有更方便的方法,进行解析,
- public class TestJson {
-
- public static void main(String[] args) {
- String jsonStr = "{'cat':'it','language':[{'id':1,'ide':'eclipse','name':'Java'},{'id':2,'ide':'XCode','name':'Swift'},{'id':3,'ide':'Visual Stdio','name':'C#'}],'pop':true}";
- JSONObject jsonObject = JSONObject.parseObject(jsonStr);
- JSONArray jsonArray = jsonObject.getJSONArray("language");
- for (int i = 0; i < jsonArray.size(); i++) {
- JSONObject object = jsonArray.getJSONObject(i);
- Student stu = JSON.toJavaObject(object, Student.class);
- System.out.println(stu.toString());
- }
- }
- }
五:运行结果如下:
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