CHAR

简介

校验字符串长度。

示例

数据字典

hrm.departments 人力资源系统-部门表

列名	数据类型	非空	自增	键	描述
dept_no	char(4)	是	-	主键	部门唯一编号
dept_name	varchar(40)	是	-	唯一键	部门名称

如上表中，部门编号字段dept_no是char类型，且长度不超过4个

示例

dept_no字段的值为超过最大长度4的字符串

luwak请求

POST http://127.0.0.1:21000
Content-Type: application/json;charset=utf-8

{
  "jsonrpc": "2.0",
  "method": "hrm.departments.add",
  "params": {
    "deptNo": "d12345",
    "deptName": "Human Resources"
  },
  "id": "client-unique-request-id"
}

响应结果

请求被拦截，报错，提示插入的数据超过了字段类型的最大长度。

HTTP/1.1 400 Bad Request
Content-Type: application/json; charset=utf-8

{
  "jsonrpc": "2.0",
  "error": {
    "code": -32602,
    "message": "validating data type: deptNo: d1235 does not validate as maxstringlength(4)",
    "data": {
      "errorCode": "EU.Validator.DataTypeError",
      "errorDetails": [
        {
          "field": "deptNo",
          "fieldValue": "d1235",
          "location": "hrm.departments",
          "message": "deptNo: d1235 does not validate as maxstringlength(4)",
          "validator": "maxstringlength"
        }
      ],
      "errorMessage": "deptNo: d1235 does not validate as maxstringlength(4)"
    }
  },
  "id": "client-unique-request-id"
}

备注: 以上示例在Luwak 1.12.9测试通过。