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  • 生成json对象

    JSONObject 对于放入的object,最终生成的json是什么样的?

    两个JavaBean:

    public class ClassBean {
        private int grade;
        private String className;
        private boolean isExperimentalClass;
        private List students;
    //······
    }
    public class StudentBean {
        private String stuName;
        private int sno;
        private Map scores;
        private List hobby;
    //·······
    }

    对于javeBean 生成JSON

    public class JsonTest {
        public static void main(String[] args) {
            ClassBean classBean = new ClassBean();
            List stus = new ArrayList();
            StudentBean stu1 = new StudentBean();
            stu1.setSno(110701);
            stu1.setStuName("JIM");
            Map scores = new HashMap();
            scores.put("math", 95);
            scores.put("chinese", 95);
            scores.put("english", 92);
            stu1.setScores(scores);
            List hobby1 = new ArrayList();
            hobby1.add("run");
            hobby1.add("eat");
            hobby1.add("sleep");
            stu1.setHobby(hobby1);
            stus.add(stu1);
            StudentBean stu2 = new StudentBean();
            stu2.setSno(110702);
            stu2.setStuName("KIM");
            Map scores2 = new HashMap();
            scores2.put("math", 98);
            scores2.put("chinese", 96);
            scores2.put("english", 92);
            stu2.setScores(scores2);
            List hobby2 = new ArrayList();
            hobby2.add("read");
            hobby2.add("play");
            stu2.setHobby(hobby2);
            stus.add(stu2);
            classBean.setClassName("二班");
            classBean.setExperimentalClass(false);
            classBean.setGrade(1);
            classBean.setStudents(stus);
            
            JSONObject jobj = new JSONObject();
            jobj.put("class", classBean);
            System.out.println(jobj.toString());
        }
    }

    输出的结果:

    {
        "class": {
            "className": "二班",
            "experimentalClass": false,
            "grade": 1,
            "students": [
                {
                    "hobby": [
                        "run",
                        "eat",
                        "sleep"
                    ],
                    "scores": {
                        "math": 95,
                        "english": 92,
                        "chinese": 95
                    },
                    "sno": 110701,
                    "stuName": "JIM"
                },
                {
                    "hobby": [
                        "read",
                        "play"
                    ],
                    "scores": {
                        "math": 98,
                        "english": 92,
                        "chinese": 96
                    },
                    "sno": 110702,
                    "stuName": "KIM"
                }
            ]
        }
    }

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  • 原文地址:https://www.cnblogs.com/jinTaylor/p/4277130.html
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