json序列化和反序列化

安装包

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.15.3</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.datatype</groupId>
    <artifactId>jackson-datatype-jsr310</artifactId>
    <version>2.15.3</version>
</dependency>

使用

序列化

Student student = new Student();
student.setName("张三");
student.setAge(10);
String jsonString = JsonUtil.toJSONString(student);
System.out.println(jsonString);

反序列化

String s = "{\"name\":\"张三\",\"age\":10}";
      // 第一种
      Student parse = JsonUtil.parse(s, Student.class);
      System.out.println(parse);
      // 第二种
      Student parse1 = JsonUtil.parse(s, new TypeReference<Student>() {
      });
      System.out.println(parse1);
      // 第三种
      JavaType javaType = JsonUtil.getCollectionType(Student.class);
      Object parse2 = JsonUtil.parse(s, javaType);
      System.out.println(parse2);

代码示例