需要导入两个jar包
json-lib是用于转换json字符串的核心jar包，上面那个是辅助的。
转换json数组就是JSONArray.fromObject(arrayList).toString()
转换json对象就是JSONObject.fromObject(arrayList).toString()
1、需要json的相关jar包2、设置json格式字符串：
String str="{\"student\":[{\"name\":\"leilei\",\"age\":23},{\"name\":\"leilei02\",\"age\":23}]}"
3、建立相应的类：
public class StudentList {
List<Student>student
public List<Student>getStudent() {
return student
}
public void setStudent(List<Student>student) {
this.student = student
}
}
public class Student {
private String name
private int age
//private StudentClass studentClass
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
}
}
