输入框实时验证是否跟后台数据重复，重复的话在输入框下边提示该名称已存在

 

 

 报错信息需要先置空，否则只会第一次报错，之后不显示报错信息

event.target.value 是实时获取的输入的内容

 

 

<el-form-item label="润滑点部件1层名称" prop="name" :error="errorMsgName">

                        <el-input

                            size="small"

                            v-model="ruleForm.name"

                            @blur="checkRepeat($event,1)"

                            maxlength="50"

                            autocomplete="off"

                            style="90%"

                        ></el-input>

                    </el-form-item>