问如何将JSON对象赋值给Hibernate Pojo + ext js 4+ Java + spring

EN

"Id": null,
"Name": "New task",
"StartDate": "2010-02-13T05:30:00",
"EndDate": "2010-02-13T05:30:00",
"Duration": 0,
"DurationUnit": "d",
"PercentDone": 0,
"ManuallyScheduled": false,
"Priority": 1,
"parentId": 22,
"index": 2,
"depth": 2,
"checked": null

private int id;
private Date startDate;
private Date endDate;
private int percentDone;
private String name;
private int priority;
private double duration;
private String durationUnit;
private int index;
private int depth;
private int parentId;

/**
 * @return the id
 */
@Id
@GeneratedValue
@Column(name = "TASK_Id")
public int getId() {
    return id;
}
/**
 * @param id the id to set
 */
public void setId(int Id) {
    this.id = Id;
}

/**
 * @return the startDate
 */
@Temporal(TemporalType.DATE)
@Column(name = "TASK_Start_Date")
public Date getStartDate() {
    return startDate;
}
/**
 * @param startDate the startDate to set
 */
public void setStartDate(Date StartDate) {
    this.startDate = StartDate;
}

/**
 * @return the endDate
 */    
@Temporal(TemporalType.DATE)
@Column(name = "TASK_End_Date")
public Date getEndDate() {
    return endDate;
}
/**
 * @param endDate the endDate to set
 */
public void setEndDate(Date EndDate) {
    this.endDate = EndDate;
}

/**
 * @return the percentDone
 */    
@Column(name = "TASK_Percent_Done")
public int getPercentDone() {
    return percentDone;
}
/**
 * @param percentDone the percentDone to set
 */
public void setPercentDone(int PercentDone) {
    this.percentDone = PercentDone;
}

/**
 * @return the name
 */
@Column(name = "TASK_Name")
public String getName() {
    return name;
}
/**
 * @param name the name to set
 */
public void setName(String Name) {
    this.name = Name;
}

/**
 * @return the priority
 */
@Column(name = "TASK_Priority")
public int getPriority() {
    return priority;
}
/**
 * @param priority the priority to set
 */
public void setPriority(int Priority) {
    this.priority = Priority;
}

/**
 * @return the duration
 */
@Column(name = "TASK_Duration")
public double getDuration() {
    return duration;
}
/**
 * @param duration the duration to set
 */
public void setDuration(double Duration) {
    this.duration = Duration;
}

/**
 * @return the durationUnit
 */
@Column(name = "TASK_DurationUnit")
public String getDurationUnit() {
    return durationUnit;
}
/**
 * @param durationUnit the durationUnit to set
 */
public void setDurationUnit(String DurationUnit) {
    this.durationUnit = DurationUnit;
}

/**
 * @return the index
 */
@Column(name = "TASK_Index")
public int getIndex() {
    return index;
}
/**
 * @param index the index to set
 */
public void setIndex(int index) {
    this.index = index;
}

/**
 * @return the depth
 */
@Column(name = "TASK_Depth")
public int getDepth() {
    return depth;
}
/**
 * @param depth the depth to set
 */
public void setDepth(int depth) {
    this.depth = depth;
}

/**
 * @return the parentId
 */
@Column(name = "TASK_ParentId")
public int getParentId() {
    return parentId;
}
/**
 * @param parentId the parentId to set
 */
public void setParentId(int parentId) {
    this.parentId = parentId;
}    

`Hibernate: insert into TASK(TASK_Depth, TASK_Duration, TASK_DurationUnit, TASK_End_Date, TASK_Index, TASK_Name, TASK_ParentId, TASK_Percent_Done, TASK_Priority, TASK_Start_Date)
values( ? , ?, ?, ?, ?, ?, ?, ?, ?, ?)`