Spring 4 没有将 JSon 绑定到 POJO

Question

我正在尝试创建一个 RestFul dao Web 服务。非常简单地调用发出 HTTP 请求 CRUD 数据。一切似乎都在工作（我正在使用 curl 创建 HTTP 请求），除了在控制器方法中我没有将 json 数据绑定到 pojo。这是控制器代码：

@PostMapping("/deleteJonTblGet")
public ResponseEntity getDeleteJonTbl(@RequestBody DeleteJonTblId deleteJonTblId)
{
    System.out.println("TEST:");
    System.out.println(deleteJonTblId.getDJon());

    DeleteJonTbl deleteJonTbl = deleteJobTblDao.findById(1);
    if (deleteJonTbl == null)
    {
        return new ResponseEntity("No Customer found for ID ", HttpStatus.NOT_FOUND);
    }

    return new ResponseEntity(deleteJonTbl, HttpStatus.OK);
}

这里是 POJO： 公共类 DeleteJonTblId 实现 java.io.Serializable {

private String DJon;
private String DReturn;
private Integer DCtr;
private String DRecdat;
private String DRectime;

public DeleteJonTblId()
{
}

public DeleteJonTblId(String DJon, String DReturn, Integer DCtr, String DRecdat, String DRectime)
{
    this.DJon = DJon;
    this.DReturn = DReturn;
    this.DCtr = DCtr;
    this.DRecdat = DRecdat;
    this.DRectime = DRectime;
}

@Column(name = "D_JON", length = 12)
public String getDJon()
{
    return this.DJon;
}

public void setDJon(String DJon)
{
    this.DJon = DJon;
}

@Column(name = "D_RETURN", length = 2)
public String getDReturn()
{
    return this.DReturn;
}

public void setDReturn(String DReturn)
{
    this.DReturn = DReturn;
}

@Column(name = "D_CTR", precision = 7, scale = 0)
public Integer getDCtr()
{
    return this.DCtr;
}

public void setDCtr(Integer DCtr)
{
    this.DCtr = DCtr;
}

@Column(name = "D_RECDAT", length = 8)
public String getDRecdat()
{
    return this.DRecdat;
}

public void setDRecdat(String DRecdat)
{
    this.DRecdat = DRecdat;
}

@Column(name = "D_RECTIME", length = 6)
public String getDRectime()
{
    return this.DRectime;
}

public void setDRectime(String DRectime)
{
    this.DRectime = DRectime;
}

public boolean equals(Object other)
{
    if ((this == other))
        return true;
    if ((other == null))
        return false;
    if (!(other instanceof DeleteJonTblId))
        return false;
    DeleteJonTblId castOther = (DeleteJonTblId) other;

    return ((this.getDJon() == castOther.getDJon())
        || (this.getDJon() != null && castOther.getDJon() != null && this.getDJon().equals(castOther.getDJon())))
        && ((this.getDReturn() == castOther.getDReturn()) || (this.getDReturn() != null
            && castOther.getDReturn() != null && this.getDReturn().equals(castOther.getDReturn())))
        && ((this.getDCtr() == castOther.getDCtr()) || (this.getDCtr() != null && castOther.getDCtr() != null
            && this.getDCtr().equals(castOther.getDCtr())))
        && ((this.getDRecdat() == castOther.getDRecdat()) || (this.getDRecdat() != null
            && castOther.getDRecdat() != null && this.getDRecdat().equals(castOther.getDRecdat())))
        && ((this.getDRectime() == castOther.getDRectime()) || (this.getDRectime() != null
            && castOther.getDRectime() != null && this.getDRectime().equals(castOther.getDRectime())));
}

public int hashCode()
{
    int result = 17;

    result = 37 * result + (getDJon() == null ? 0 : this.getDJon().hashCode());
    result = 37 * result + (getDReturn() == null ? 0 : this.getDReturn().hashCode());
    result = 37 * result + (getDCtr() == null ? 0 : this.getDCtr().hashCode());
    result = 37 * result + (getDRecdat() == null ? 0 : this.getDRecdat().hashCode());
    result = 37 * result + (getDRectime() == null ? 0 : this.getDRectime().hashCode());
    return result;
}

}

这是卷曲：

curl --libcurl C:\Development\test.log -i -X POST -H "Content-Type: application/json" -d "{\"DJon\":\"a\",\"DReturn \":\"a\",\"DCtr\":1,\"DRecdat\":\"a\",\"DRectime\":\"a\"}" http://localhost:8080/taaDaoWS/deleteJonTblGet

控制器方法已执行，但 deleteJonTblId 对象具有所有空值。任何帮助将不胜感激。

Answer 1

有趣：我将 json 列名更改为小写，它开始起作用了。