Java Json解析，Java Web Json解析，Java Web服务端获取Json数据，客户端通过HTTP获取Json数...

package com.test.json; import java.util.ArrayList; import java.util.Date; import java.util.List; import com.google.gson.Gson; import com.test.model.Box; import com.test.model.News; import com.test.model.Teacher; import com.test.model.SchoolClass; import com.test.model.Student; public class JsonTest { public static void main(String[] args) { // 模拟从数据库获取数据，可将此处改为用JDBC从数据库读取数据 Teacher c1 = new Teacher(10010, "颜老师", "教授"); // 添加学生信息到集合 Student s1 = new Student(201520800, "张三", "2015-12-01", "男"); Student s2 = new Student(201520800, "李四", "2015-08-01", "男"); Student s3 = new Student(201520800, "如花", "2015-06-01", "女"); Student s4 = new Student(201520800, "如柳", "2015-07-01", "女"); List<Student> sList = new ArrayList<Student>(); sList.add(s1); sList.add(s2); sList.add(s3); sList.add(s4); // 创建班级，包涵其他JavaBean对象以及数组 SchoolClass sc = new SchoolClass(101, "软件1班", c1, sList); // 创建一个新闻类，包涵Date类型对象 News newOne = new News(110, "日本地震", "日本福田发生了7级地震", new Date( System.currentTimeMillis()), "www.baidu.com"); // 调用GSON jar工具包封装好的toJson方法，可直接生成JSON字符串 Gson gson = new Gson(); String sJson = gson.toJson(c1); String scJson = gson.toJson(sc); String nJson = gson.toJson(newOne); // 输出JSON System.err.println(nJson); System.out.println(sJson); System.out.println(scJson); // 反序列化JSON为对象 String teJsonString = "{\"tId\":10010,\"name\":\"张老师\",\"title\":\"教授\"}"; Teacher teacher = gson.fromJson(teJsonString, Teacher.class); System.out.println(teacher.getName()); // 泛型模拟 Box<String> name = new Box<String>("corn"); Box<Integer> age = new Box<Integer>(712); Box<Number> number = new Box<Number>(314); getData(name); getData(age); getData(number); //上限 getUpperIntegerData(age); getUpperIntegerData(number); //下限 getUnderIntegerData(age); } public static void getData(Box<?> data) { System.out.println("data :" + data.getData()); } public static void getUpperIntegerData(Box<? super Integer> data) { System.out.println("data :" + data.getData()); } public static void getUnderIntegerData(Box<? extends Integer> data) { System.out.println("data :" + data.getData()); } }