angular2 ng2-validation 表单验证

时间：2023-03-09 06:36:28
angular2 ng2-validation 表单验证

1：安装模块

npm install ng2-validation --save

2：配置app.module.ts

import { FormsModule, <font color="Red">ReactiveFormsModule</font> } from '@angular/forms';

import {<font color="Red">CustomFormsModule</font>} from "ng2-validation";

...

imports: [

    FormsModule,

    <font color="Red">CustomFormsModule,</font>

    <font color="Red">ReactiveFormsModule</font>

  ],

...

3：表单验证有两种方式 <1> 模板驱动       <2>模型驱动

接下来我们看下 模板驱动  只有一个步骤 <1>  配置模版文件     ts文件不需要做什么
app-ttemplate-driven.component.html

<div class="container">

  <form (ngSubmit)="onSubmit()" #validationForm="ngForm">

    <div class="form-group">

      <label for="appField">长度要求</label>

      <input type="text" required class="form-control" name="appField" [(ngModel)]="model.appField" #rangeLength="ngModel" [rangeLength]="[5, 9]">

      <p [hidden]="rangeLength.valid||rangeLength.pristine">长度在5到9之间</p>

    </div>

    <div class="form-group">

      <label for="appField2">长度要求2</label>

      <input type="text"  class="form-control" name="appField2" [(ngModel)]="model.appField2" #rangeLength2="ngModel" [rangeLength]="[0,5]">

      <p [hidden]="rangeLength2.valid||rangeLength2.pristine">长度要求</p>

    </div>

    <div class="form-group">

      <label for="appMin">最小值</label>

      <input type="number"  class="form-control" name="appMin" [(ngModel)]="model.appMin"  #appMin="ngModel" [min]="" />

     <p [hidden]="appMin.valid||appMin.pristine">取值大于等于10</p>

    </div>

   <div class="form-group">

     <label for="appGt">大于</label>

     <input type="number" class="form-control" name="appGt" [(ngModel)]="model.appGt" #appGt="ngModel" [gt]="" />

     <p [hidden]="appGt.valid||appGt.pristine">取值大于10</p>

   </div>

   <div class="form-group">

     <label for="appGte">大于等于</label>

     <input type="number" class="form-control" name="appGte" [(ngModel)]="model.appGte" #appGte="ngModel" [gte]="" />

     <p [hidden]="appGte.valid||appGte.pristine">取值大于等于10</p>

   </div>

   <div class="form-group">

     <label for="appMax">最大值</label>

     <input type="number" class="form-control" name="appMax" [(ngModel)]="model.appMax" #appMax="ngModel" [max]="" />

     <p [hidden]="appMax.valid||appMax.pristine">最小值10</p>

   </div>

    <div class="form-group">

     <label for="appLt">小于</label>

     <input type="number" class="form-control" name="appLt" [(ngModel)]="model.appLt" #appLt="ngModel" [lt]="" />

     <p [hidden]="appLt.valid||appLt.pristine">值小于10</p>

   </div>

   <div class="form-group">

     <label for="appLte">小于等于</label>

     <input type="number" class="form-control" name="appLte" [(ngModel)]="model.appLte" #appLte="ngModel" [lte]="" />

     <p [hidden]="appLte.valid||appLte.pristine">值小于等于10</p>

   </div>

   <div class="form-group">

     <label for="appRange">取值范围</label>

     <input type="number" class="form-control" name="appRange" [(ngModel)]="model.appRange" #appRange="ngModel" [range]="[10, 20]" />

     <p [hidden]="appRange.valid||appRange.pristine">取值大于等于10到小于等于20</p>

   </div>

   <div class="form-group">

     <label for="appDigits">数字</label>

     <input type="text" class="form-control" name="appDigits" [(ngModel)]="model.appDigits" #appDigits="ngModel" digits />

     <p [hidden]="appDigits.valid||appDigits.pristine">必须是uint</p>

   </div>

   <div class="form-group">

     <label for="appNumber">数字</label>

     <input type="text" class="form-control" name="appNumber" [(ngModel)]="model.appNumber" #appNumber="ngModel" number />

     <p [hidden]="appNumber.valid||appNumber.pristine">任何数字</p>

   </div>

   <div class="form-group">

     <label for="appUrl">链接</label>

     <input type="text" class="form-control" name="appUrl" [(ngModel)]="model.appUrl" #appUrl="ngModel" url />

     <p [hidden]="appUrl.valid||appUrl.pristine">合法的url</p>

   </div>

    <div class="form-group">

     <label for="appEmail">邮箱</label>

     <input type="text" class="form-control" name="appEmail" [(ngModel)]="model.appEmail" #appEmail="ngModel" email />

     <p [hidden]="appEmail.valid||appEmail.pristine">合法的邮箱地址</p>

   </div>

   <div class="form-group">

     <label for="appDate">日期</label>

     <input type="text" class="form-control" name="appDate" [(ngModel)]="model.appDate" #appDate="ngModel" date />

     <p [hidden]="appDate.valid||appDate.pristine">合法的日期</p>

   </div>

   <div class="form-group">

     <label for="appUuid">uuid</label>

     <input type="text" class="form-control" name="appUuid" [(ngModel)]="model.appUuid" #appUuid="ngModel" uuid="'all'" />

     <p [hidden]="appUuid.valid||appUuid.pristine">不是合法的uuid</p>

   </div>

   <div class="form-group">

     <label for="appPhone">电话</label>

     <input type="text" class="form-control" name="appPhone" [(ngModel)]="model.appPhone" #appPhone="ngModel" phone="CN" />

     <p [hidden]="appPhone.valid||appPhone.pristine">不是合法的电话号码</p>

   </div>

   <div class="form-group">

     <label >两次相同</label>

     <input class="form-control"  type="password" ngModel name="appPassword" #appPassword="ngModel" required/>

     <p [hidden]="appPassword.valid||appPassword.pristine">必填项</p>

     <input class="form-control"  type="password" ngModel name="appCertainPassword" #appCertainPassword="ngModel" [equalTo]="appPassword"/>

     <p [hidden]="appCertainPassword.valid||appCertainPassword.pristine">两次输入不一致</p>

   </div>

   <div class="form-group">

     <label for="appEqual">相同</label>

     <input type="text" class="form-control" name="appEqual" [(ngModel)]="model.appEqual" #appEqual="ngModel" [equal]="'哈哈'" />

     <p [hidden]="appEqual.valid||appEqual.pristine">与值不相符</p>

   </div>

    <div class="form-group">

     <label for="appComplex">复合条件</label>

     <input type="number" class="form-control" name="appComplex" [(ngModel)]="model.appComplex" #appComplex="ngModel" [gte]="" [max]=""  />

     <p [hidden]="appComplex.valid||appComplex.pristine">大于等于5，最大是10</p>

   </div>

    <button type="submit" [disabled]="!validationForm.form.valid" class="btn btn-default">Submit</button>

  </form>

</div>

接下来我们看下 模型驱动, 分两个步骤 <1> 配置组件.ts文件     <2> 配置模版文件
app-model-driven.component.ts

import { Component, OnInit } from '@angular/core';

import { FormGroup, FormControl, Validators } from "@angular/forms";

import { CustomValidators } from 'ng2-validation';

@Component({

  selector: 'app-app-model-driven',

  templateUrl: './app-model-driven.component.html',

  styleUrls: ['./app-model-driven.component.css']

})

export class AppModelDrivenComponent implements OnInit {

public formGroup: FormGroup;

password:string="";

  constructor() {

    let password = new FormControl('', [Validators.required]);

  let certainPassword = new FormControl('', CustomValidators.equalTo(password));

    this.formGroup = new FormGroup({

            field: new FormControl('',  CustomValidators.rangeLength([, ])),

            appGt:new FormControl('', CustomValidators.gt()),

            password:password,

            certainPassword:certainPassword,

            maxField:new FormControl('',[CustomValidators.gt(),CustomValidators.max()])

        });

  }

  ngOnInit() {

  }

onSubmit(){}

}

app-model-driven.component.html

<div class="container">

  <form [formGroup]="formGroup" (ngSubmit)="onSubmit()" #validationForm2="ngForm" >

    <div class="form-group" >

      <input class="form-control" name="field"  type="text"  formControlName="field"/>

      <p *ngIf="validationForm2.form.controls.field.errors?.rangeLength">长度在5到9之间</p>

      <p>{{validationForm2.form.controls.field.errors?.rangeLength}}</p>

    </div>

   <div class="form-group" >

      <input class="form-control" name="appGt" type="number"  formControlName="appGt"/>

      <p *ngIf="validationForm2.form.controls.appGt.errors?.gt">大于10</p>

    </div>

    <div class="form-group" >

      <input class="form-control" name="password" type="password" [(ngModel)]="password" formControlName="password"/>

      <p *ngIf="validationForm2.form.controls.password.errors?.required">必填</p>

      <p>{{test.pristine}}</p>

      <input class="form-control" type="password" formControlName="certainPassword"/>

      <p *ngIf="validationForm2.form.controls.certainPassword.errors?.equalTo">两次相同</p>

    </div>

    <div class="form-group" >

      <label for="appMin">组合形式</label>

      <input type="number"  class="form-control" name="appMin" formControlName="maxField" />

     <p [hidden]="!validationForm2.form.controls.maxField.errors?.max &&!validationForm2.form.controls.maxField.errors?.gt">取值大于等于10且小于20</p>

    </div>

    <button type="submit" [disabled]="!validationForm2.form.valid" class="btn btn-default">Submit</button>

  </form>

</div>

官方文档：ng2-validation

1：安装模块

  1. npm install ng2-validation --save

复制代码

2：配置app.module.ts

  1. import { FormsModule, <font color="Red">ReactiveFormsModule</font> } from '@angular/forms';
  2. import {<font color="Red">CustomFormsModule</font>} from "ng2-validation";
  3. ...
  4. imports: [
  5. FormsModule,
  6. <font color="Red">CustomFormsModule,</font>
  7. <font color="Red">ReactiveFormsModule</font>
  8. ],
  9. ...

复制代码

3：表单验证有两种方式 <1> 模板驱动       <2>模型驱动

接下来我们看下 模板驱动  只有一个步骤 <1>  配置模版文件     ts文件不需要做什么
app-ttemplate-driven.component.html

  1. <div class="container">
  2. <form (ngSubmit)="onSubmit()" #validationForm="ngForm">
  3. <div class="form-group">
  4. <label for="appField">长度要求</label>
  5. <input type="text" required class="form-control"
    name="appField" [(ngModel)]="model.appField" #rangeLength="ngModel"
    [rangeLength]="[5, 9]">
  6. <p [hidden]="rangeLength.valid||rangeLength.pristine">长度在5到9之间</p>
  7. </div>
  8. <div class="form-group">
  9. <label for="appField2">长度要求2</label>
  10. <input type="text"  class="form-control"
    name="appField2" [(ngModel)]="model.appField2" #rangeLength2="ngModel"
    [rangeLength]="[0,5]">
  11. <p [hidden]="rangeLength2.valid||rangeLength2.pristine">长度要求</p>
  12. </div>
  13. <div class="form-group">
  14. <label for="appMin">最小值</label>
  15. <input type="number"  class="form-control" name="appMin" [(ngModel)]="model.appMin"  #appMin="ngModel" [min]="10" />
  16. <p [hidden]="appMin.valid||appMin.pristine">取值大于等于10</p>
  17. </div>
  18. <div class="form-group">
  19. <label for="appGt">大于</label>
  20. <input type="number" class="form-control" name="appGt" [(ngModel)]="model.appGt" #appGt="ngModel" [gt]="10" />
  21. <p [hidden]="appGt.valid||appGt.pristine">取值大于10</p>
  22. </div>
  23. <div class="form-group">
  24. <label for="appGte">大于等于</label>
  25. <input type="number" class="form-control" name="appGte" [(ngModel)]="model.appGte" #appGte="ngModel" [gte]="10" />
  26. <p [hidden]="appGte.valid||appGte.pristine">取值大于等于10</p>
  27. </div>
  28. <div class="form-group">
  29. <label for="appMax">最大值</label>
  30. <input type="number" class="form-control" name="appMax" [(ngModel)]="model.appMax" #appMax="ngModel" [max]="10" />
  31. <p [hidden]="appMax.valid||appMax.pristine">最小值10</p>
  32. </div>
  33. <div class="form-group">
  34. <label for="appLt">小于</label>
  35. <input type="number" class="form-control" name="appLt" [(ngModel)]="model.appLt" #appLt="ngModel" [lt]="10" />
  36. <p [hidden]="appLt.valid||appLt.pristine">值小于10</p>
  37. </div>
  38. <div class="form-group">
  39. <label for="appLte">小于等于</label>
  40. <input type="number" class="form-control" name="appLte" [(ngModel)]="model.appLte" #appLte="ngModel" [lte]="10" />
  41. <p [hidden]="appLte.valid||appLte.pristine">值小于等于10</p>
  42. </div>
  43. <div class="form-group">
  44. <label for="appRange">取值范围</label>
  45. <input type="number" class="form-control"
    name="appRange" [(ngModel)]="model.appRange" #appRange="ngModel"
    [range]="[10, 20]" />
  46. <p [hidden]="appRange.valid||appRange.pristine">取值大于等于10到小于等于20</p>
  47. </div>
  48. <div class="form-group">
  49. <label for="appDigits">数字</label>
  50. <input type="text" class="form-control" name="appDigits" [(ngModel)]="model.appDigits" #appDigits="ngModel" digits />
  51. <p [hidden]="appDigits.valid||appDigits.pristine">必须是uint</p>
  52. </div>
  53. <div class="form-group">
  54. <label for="appNumber">数字</label>
  55. <input type="text" class="form-control" name="appNumber" [(ngModel)]="model.appNumber" #appNumber="ngModel" number />
  56. <p [hidden]="appNumber.valid||appNumber.pristine">任何数字</p>
  57. </div>
  58. <div class="form-group">
  59. <label for="appUrl">链接</label>
  60. <input type="text" class="form-control" name="appUrl" [(ngModel)]="model.appUrl" #appUrl="ngModel" url />
  61. <p [hidden]="appUrl.valid||appUrl.pristine">合法的url</p>
  62. </div>
  63. <div class="form-group">
  64. <label for="appEmail">邮箱</label>
  65. <input type="text" class="form-control" name="appEmail" [(ngModel)]="model.appEmail" #appEmail="ngModel" email />
  66. <p [hidden]="appEmail.valid||appEmail.pristine">合法的邮箱地址</p>
  67. </div>
  68. <div class="form-group">
  69. <label for="appDate">日期</label>
  70. <input type="text" class="form-control" name="appDate" [(ngModel)]="model.appDate" #appDate="ngModel" date />
  71. <p [hidden]="appDate.valid||appDate.pristine">合法的日期</p>
  72. </div>
  73. <div class="form-group">
  74. <label for="appUuid">uuid</label>
  75. <input type="text" class="form-control" name="appUuid" [(ngModel)]="model.appUuid" #appUuid="ngModel" uuid="'all'" />
  76. <p [hidden]="appUuid.valid||appUuid.pristine">不是合法的uuid</p>
  77. </div>
  78. <div class="form-group">
  79. <label for="appPhone">电话</label>
  80. <input type="text" class="form-control" name="appPhone"
    [(ngModel)]="model.appPhone" #appPhone="ngModel" phone="CN" />
  81. <p [hidden]="appPhone.valid||appPhone.pristine">不是合法的电话号码</p>
  82. </div>
  83. <div class="form-group">
  84. <label >两次相同</label>
  85. <input class="form-control"  type="password" ngModel name="appPassword" #appPassword="ngModel" required/>
  86. <p [hidden]="appPassword.valid||appPassword.pristine">必填项</p>
  87. <input class="form-control"  type="password" ngModel
    name="appCertainPassword" #appCertainPassword="ngModel"
    [equalTo]="appPassword"/>
  88. <p [hidden]="appCertainPassword.valid||appCertainPassword.pristine">两次输入不一致</p>
  89. </div>
  90. <div class="form-group">
  91. <label for="appEqual">相同</label>
  92. <input type="text" class="form-control" name="appEqual"
    [(ngModel)]="model.appEqual" #appEqual="ngModel" [equal]="'哈哈'" />
  93. <p [hidden]="appEqual.valid||appEqual.pristine">与值不相符</p>
  94. </div>
  95. <div class="form-group">
  96. <label for="appComplex">复合条件</label>
  97. <input type="number" class="form-control"
    name="appComplex" [(ngModel)]="model.appComplex" #appComplex="ngModel"
    [gte]="5" [max]="10"  />
  98. <p [hidden]="appComplex.valid||appComplex.pristine">大于等于5，最大是10</p>
  99. </div>
  100. <button type="submit" [disabled]="!validationForm.form.valid" class="btn btn-default">Submit</button>
  101. </form>
  102. </div>

复制代码

接下来我们看下 模型驱动, 分两个步骤 <1> 配置组件.ts文件     <2> 配置模版文件
app-model-driven.component.ts

  1. import { Component, OnInit } from '@angular/core';
  2. import { FormGroup, FormControl, Validators } from "@angular/forms";
  3. import { CustomValidators } from 'ng2-validation';
  4. @Component({
  5. selector: 'app-app-model-driven',
  6. templateUrl: './app-model-driven.component.html',
  7. styleUrls: ['./app-model-driven.component.css']
  8. })
  9. export class AppModelDrivenComponent implements OnInit {
  10. public formGroup: FormGroup;
  11. password:string="";
  12. constructor() {
  13. let password = new FormControl('', [Validators.required]);
  14. let certainPassword = new FormControl('', CustomValidators.equalTo(password));
  15. this.formGroup = new FormGroup({
  16. field: new FormControl('',  CustomValidators.rangeLength([5, 9])),
  17. appGt:new FormControl('', CustomValidators.gt(10)),
  18. password:password,
  19. certainPassword:certainPassword,
  20. maxField:new FormControl('',[CustomValidators.gt(10),CustomValidators.max(20)])
  21. });
  22. }
  23. ngOnInit() {
  24. }
  25. onSubmit(){}
  26. }

复制代码

app-model-driven.component.html

  1. <div class="container">
  2. <form [formGroup]="formGroup" (ngSubmit)="onSubmit()" #validationForm2="ngForm" >
  3. <div class="form-group" >
  4. <input class="form-control" name="field"  type="text"  formControlName="field"/>
  5. <p *ngIf="validationForm2.form.controls.field.errors?.rangeLength">长度在5到9之间</p>
  6. <p>{{validationForm2.form.controls.field.errors?.rangeLength}}</p>
  7. </div>
  8. <div class="form-group" >
  9. <input class="form-control" name="appGt" type="number"  formControlName="appGt"/>
  10. <p *ngIf="validationForm2.form.controls.appGt.errors?.gt">大于10</p>
  11. </div>
  12. <div class="form-group" >
  13. <input class="form-control" name="password" type="password" [(ngModel)]="password" formControlName="password"/>
  14. <p *ngIf="validationForm2.form.controls.password.errors?.required">必填</p>
  15. <p>{{test.pristine}}</p>
  16. <input class="form-control" type="password" formControlName="certainPassword"/>
  17. <p *ngIf="validationForm2.form.controls.certainPassword.errors?.equalTo">两次相同</p>
  18. </div>
  19. <div class="form-group" >
  20. <label for="appMin">组合形式</label>
  21. <input type="number"  class="form-control" name="appMin" formControlName="maxField" />
  22. <p
    [hidden]="!validationForm2.form.controls.maxField.errors?.max
    &&!validationForm2.form.controls.maxField.errors?.gt">取值大于等于10且小于20</p>
  23. </div>
  24. <button type="submit" [disabled]="!validationForm2.form.valid" class="btn btn-default">Submit</button>
  25. </form>
  26. </div>

复制代码

官方文档：ng2-validation

相关文章