Vue is a progressive framework for building user interfaces. It adopts the MVVM (Model-View-ViewModel) architectural pattern, which can easily manage and operate the view and data layer. In Vue, we can call the back-end api interface through ajxa request to obtain data, but sometimes we need to call the jsp interface to obtain data. So how does Vue adjust the jsp interface?
1. The interaction between jsp and vue
In order for jsp and vue to communicate with each other, we need to define an interface in the front-end page to receive the data returned by jsp. Vue calls jsp through the interface, and jsp returns the data and then passes the data back to Vue through the interface. The main role of jsp is as the middle layer, responsible for calling back-end services. Let's take a look at the specific implementation steps.
2. Specific implementation steps
- Define an interface in the Vue component to receive the data returned by jsp.
//定义接口 var obj = { call: function(data) {}, callError: function(data) {}, callbackName: '' }
- Use json response in jsp to return data. What needs to be noted here is that before returning data, you need to obtain the callbackName defined by Vue and return it as the callback function name, so that Vue can The data was received correctly.
- Call jsp interface in Vue component
//调用jsp接口 var scriptEle = document.createElement('script'); scriptEle.src = 'http://localhost/app.jsp?callback=' + obj.callbackName + '¶ms=' + JSON.stringify(data); document.head.appendChild(scriptEle);
4. Summary
The above are the specific implementation steps of Vue calling jsp interface . By defining the interface of the front-end page to receive the return data of jsp, and then calling the interface of jsp through ajax request, the data interaction of the front-end and back-end is realized. For web applications developed using Vue, you can flexibly choose to call different interfaces to obtain data according to your needs.
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