对象转JSON,JSON数据顺序

package model;

import java.util.List;

public class Task {
private String TaskName;
private String From;
private String To;
private String Date;
private String TrainNum;
private String SeatType;
private List UserList;
private int PriorityRule;
private boolean AutoPassenger;
private boolean Student;
private String Remark;

public String getTaskName() {
    return TaskName;
}
public void setTaskName(String taskName) {
    TaskName = taskName;
}
public String getFrom() {
    return From;
}
public void setFrom(String from) {
    From = from;
}
public String getTo() {
    return To;
}
public void setTo(String to) {
    To = to;
}
public String getDate() {
    return Date;
}
public void setDate(String date) {
    Date = date;
}
public String getTrainNum() {
    return TrainNum;
}
public void setTrainNum(String trainNum) {
    TrainNum = trainNum;
}
public String getSeatType() {
    return SeatType;
}
public void setSeatType(String seatType) {
    SeatType = seatType;
}
public List<User> getUserList() {
    return UserList;
}
public void setUserList(List<User> userList) {
    UserList = userList;
}
public int getPriorityRule() {
    return PriorityRule;
}
public void setPriorityRule(int priorityRule) {
    PriorityRule = priorityRule;
}
public boolean isAutoPassenger() {
    return AutoPassenger;
}
public void setAutoPassenger(boolean autoPassenger) {
    AutoPassenger = autoPassenger;
}
public boolean isStudent() {
    return Student;
}
public void setStudent(boolean student) {
    Student = student;
}
public String getRemark() {
    return Remark;
}
public void setRemark(String remark) {
    Remark = remark;
}

}

package model;

public class User {

private String UserName;

private String PassWord;

private String Passengers;

private boolean Children;

private int ChildrenCount;

public String getUserName() {
    return UserName;
}

public void setUserName(String UserName) {
    this.UserName = UserName;
}

public String getPassWord() {
    return PassWord;
}

public void setPassWord(String passWord) {
    PassWord = passWord;
}

public String getPassengers() {
    return Passengers;
}

public void setPassengers(String passengers) {
    Passengers = passengers;
}

public boolean isChildren() {
    return Children;
}

public void setChildren(boolean children) {
    Children = children;
}

public int getChildrenCount() {
    return ChildrenCount;
}

public void setChildrenCount(int childrenCount) {
    ChildrenCount = childrenCount;
}

}

对象实体类定义的顺序