search
HomeWeb Front-endJS TutorialHow to use Vue-resource to complete interaction in VUE

How to use Vue-resource to complete interaction in VUE

Jun 29, 2018 pm 03:01 PM
jsonpresourcevuevue-resourceinteraction

This article mainly introduces the use of Vue-resource to complete interaction in VUE. The content is quite good. I will share it with you now and give it as a reference.

This article introduces the use of Vue-resource to complete interaction in VUE and shares it with everyone. The details are as follows

Using vue-resource

Introducing vue-resource

vue-resource is like $.ajax in jQuery, which is used to interact with the back-end data. vue-resource is a plug-in for vue, so Before we start using vue, we need to introduce the file vue-resource.js

<script src=&#39;js/vue.js&#39;></script>
<script src=&#39;js/vue-resource.js&#39;></script>

Basic syntax

// 基于全局Vue对象使用http
Vue.http.get(&#39;/someUrl&#39;, [options]).then(successCallback, errorCallback);
Vue.http.post(&#39;/someUrl&#39;, [body], [options]).then(successCallback, errorCallback);


// 在一个Vue实例内使用$http
this.$http.get(&#39;/someUrl&#39;, [options]).then(successCallback, errorCallback);
this.$http.post(&#39;/someUrl&#39;, [body], [options]).then(successCallback, errorCallback);

After sending the request, use the then method to process the response result. The then method has two parameters. The first parameter is the callback function when the response is successful, and the second parameter is the callback function when the response fails. .

options object

Instance:

GET request

In the following example , we make a summation function, the effect is as follows:

get method:

this.$http.get(&#39;/someUrl&#39;, [options]).then(function(response){  
  // 响应成功回调
}, function(response){  
  // 响应错误回调
});

In this example, we prepared a php file, which mainly receives the parameters passed by the front desk through get, and calculates the sum of the two parameters. The code is as follows:

<?php
  $a=$_GET[&#39;a&#39;];
  $b=$_GET[&#39;b&#39;];
  echo $a+$b;
?>

html code:

<p class="container" id="box" style="margin-top:100px">
  <input type="text" name="" id="" v-model="a" />+
  <input type="text" name="" id="" v-model="b" />
  =
  <input type="button" value="求和" class="btn btn-info" @click="add()"/>
</p>

<script type="text/javascript">
  new Vue({
    el:"#box",
    data:{
      a:"",
      b:""
    },
    methods:{
      add:function(){
        this.$http.get("get.php",{
          "a":this.a,
          "b":this.b
        }).then(function(response){
          alert(response.data)
        },function(response){
          alert(response.status)
        }
        )
      }
    }
  })
</script>

Description: response is the parameter returned by the background, which includes The following attributes:

POST request

<?php
  $a=$_POST[&#39;a&#39;];
  $b=$_POST[&#39;b&#39;];
  echo $a+$b;
?>

    new Vue({
      el:"#box",
      data:{
        a:"",
        b:""
      },
      methods:{
        add:function(){
          this.$http.post("post.php",{
            "a":this.a,
            "b":this.b
          },{
            emulateJSON:true //POST请求需要将emulateJSON设置为true
          }).then(function(response){
            alert(response.data)
          },function(response){
            alert(response.status)
          }
          )
        }
      }
    })

JSONP

The syntax of jsonp is similar to get and post, but the data passed is different. Next, we use jsonp to complete a Baidu search function.

1. First prepare an instance interface, which is Baidu’s search interface (we can find some interfaces ourselves for testing), as follows:

https://sp0.baidu.com /5a1Fazu8AA54nxGko9WTAnF6hhy/su?wd=a&cb=show

2. Prepare layout

    <p class="container" id="box" style="margin-top:100px">
      <input type="text" placeholder="请输入搜索内容" />
      <ul>
        <li >22222</li>
      </ul>
      <p >暂无数据...</p>
    </p>

##3. Function Description

When we enter the search content in the search box, the following list will display the words associated with the content we entered. Press the up and down keys of the keyboard to select words in the list up and down. When pressing the enter key, a search will be performed

4. Code implementation

First we prepare a myData array to store the associated words . t1 is the value entered in the input box, as follows

<input type="text" placeholder="请输入搜索内容" v-model="t1" />

data:{
  myData:[],
  t1:""
}

When entering content in the search box , execute a method, which is mainly used to send a request to obtain the associated words of the input content.

<input type="text" placeholder="请输入搜索内容" v-model="t1" @keyup="search()"/>

     methods:{
        search:function(ev){this.$http.jsonp("https://sp0.baidu.com/5a1Fazu8AA54nxGko9WTAnF6hhy/su",{
            "wd":this.t1
          },{
            jsonp:"cb" //callback名字,默认是callback
          }).then(function(response){
            this.myData=response.data.s
          },function(response){
            alert(response.status)
          }
          )
          }
        }

At this point, the associated words we searched for can be displayed in the list. As shown below:

We can achieve the following. When pressing the up and down keys, select the word

    <p class="container" id="box" style="margin-top:100px">
      <input type="text" v-model="t1" @keyup="search($event)" @keydown.down.prevent="changeDown($event)" @keydown.up.prevent="changeup()"/>
      <ul>
        <li v-for="(value, index) in myData" :class="{gray:index==now}">{{value}}</li>
      </ul>
      <p v-show="myData.length==0">暂无数据...</p>
    </p>

/*data数据*/
      data:{
        myData:[],
        t1:"",
        now:-1
      }
/*上下键的方法*/
        changeDown:function(){
            this.now++;
            if(this.now==this.myData.length){
              this.now=-1;
            }
            this.t1=this.myData[this.now];
        },
        changeup:function(){
            this.now--;
            if(this.now==-2){
              this.now=this.myData.length-1;
            }
            this.t1=this.myData[this.now];
        }

Complete code:



  
    
    初识vue
    
    
  
  
    <p class="container" id="box" style="margin-top:100px">
      <input type="text" v-model="t1" @keyup="search($event)" @keydown.down.prevent="changeDown($event)" @keydown.up.prevent="changeup()"/>
      <ul>
        <li v-for="(value, index) in myData" :class="{gray:index==now}">{{value}}</li>
      </ul>
      <p v-show="myData.length==0">暂无数据...</p>
    </p>
  
  
  
  
  
  

The above is the entire content of this article, I hope it will be useful for everyone’s learning Help, please pay attention to the PHP Chinese website for more related content!

Related recommendations:

Vue implements the function of cropping images and uploading them to the server.

Vue implements two-way binding method

The above is the detailed content of How to use Vue-resource to complete interaction in VUE. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
From Websites to Apps: The Diverse Applications of JavaScriptFrom Websites to Apps: The Diverse Applications of JavaScriptApr 22, 2025 am 12:02 AM

JavaScript is widely used in websites, mobile applications, desktop applications and server-side programming. 1) In website development, JavaScript operates DOM together with HTML and CSS to achieve dynamic effects and supports frameworks such as jQuery and React. 2) Through ReactNative and Ionic, JavaScript is used to develop cross-platform mobile applications. 3) The Electron framework enables JavaScript to build desktop applications. 4) Node.js allows JavaScript to run on the server side and supports high concurrent requests.

Python vs. JavaScript: Use Cases and Applications ComparedPython vs. JavaScript: Use Cases and Applications ComparedApr 21, 2025 am 12:01 AM

Python is more suitable for data science and automation, while JavaScript is more suitable for front-end and full-stack development. 1. Python performs well in data science and machine learning, using libraries such as NumPy and Pandas for data processing and modeling. 2. Python is concise and efficient in automation and scripting. 3. JavaScript is indispensable in front-end development and is used to build dynamic web pages and single-page applications. 4. JavaScript plays a role in back-end development through Node.js and supports full-stack development.

The Role of C/C   in JavaScript Interpreters and CompilersThe Role of C/C in JavaScript Interpreters and CompilersApr 20, 2025 am 12:01 AM

C and C play a vital role in the JavaScript engine, mainly used to implement interpreters and JIT compilers. 1) C is used to parse JavaScript source code and generate an abstract syntax tree. 2) C is responsible for generating and executing bytecode. 3) C implements the JIT compiler, optimizes and compiles hot-spot code at runtime, and significantly improves the execution efficiency of JavaScript.

JavaScript in Action: Real-World Examples and ProjectsJavaScript in Action: Real-World Examples and ProjectsApr 19, 2025 am 12:13 AM

JavaScript's application in the real world includes front-end and back-end development. 1) Display front-end applications by building a TODO list application, involving DOM operations and event processing. 2) Build RESTfulAPI through Node.js and Express to demonstrate back-end applications.

JavaScript and the Web: Core Functionality and Use CasesJavaScript and the Web: Core Functionality and Use CasesApr 18, 2025 am 12:19 AM

The main uses of JavaScript in web development include client interaction, form verification and asynchronous communication. 1) Dynamic content update and user interaction through DOM operations; 2) Client verification is carried out before the user submits data to improve the user experience; 3) Refreshless communication with the server is achieved through AJAX technology.

Understanding the JavaScript Engine: Implementation DetailsUnderstanding the JavaScript Engine: Implementation DetailsApr 17, 2025 am 12:05 AM

Understanding how JavaScript engine works internally is important to developers because it helps write more efficient code and understand performance bottlenecks and optimization strategies. 1) The engine's workflow includes three stages: parsing, compiling and execution; 2) During the execution process, the engine will perform dynamic optimization, such as inline cache and hidden classes; 3) Best practices include avoiding global variables, optimizing loops, using const and lets, and avoiding excessive use of closures.

Python vs. JavaScript: The Learning Curve and Ease of UsePython vs. JavaScript: The Learning Curve and Ease of UseApr 16, 2025 am 12:12 AM

Python is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.

Python vs. JavaScript: Community, Libraries, and ResourcesPython vs. JavaScript: Community, Libraries, and ResourcesApr 15, 2025 am 12:16 AM

Python and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

SublimeText3 English version

SublimeText3 English version

Recommended: Win version, supports code prompts!

mPDF

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

MinGW - Minimalist GNU for Windows

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

Atom editor mac version download

Atom editor mac version download

The most popular open source editor