This time I will bring you the steps required to obtain ModelAndView with js, and what are the precautions for obtaining ModelAndView with js. The following is a practical case, let's take a look.
1 Method 1 [Valid]
Yes, the access method is the same as elexpression.
Sample code, a userId is stored in the Action of a data display request:@RequestMapping(value="/diary") public ModelAndView toDiaryList(HttpSession session){ ModelAndView view = new ModelAndView("/diary_list"); TbUser user = (TbUser)session.getAttribute(SystemConstant.CURRENT_USER); //set info of current user if(user!=null){ Integer id = user.getId(); view.addObject("userId",id); } return view; }
Use this userId as a query condition in the js in the page jsp file:
<script> var path = '<%=basePath%>'; var author=${userId}; $(document).ready(function(){ queryList(); }); function queryList(){ $.ajax({ type : 'POST', url : path+'queryDiaryList', //通过url传递name参数 data : { author:author, page:_currentPage, pageSize:_pageSize, type:$("#queryType").val() }, dataType : 'json', success:function(data){ if(data.status){ showTable(data.result); //调用分页插件,初始化分页p pageShow("queryList",data.ext.total); }else{ alert(data.description); } }, error:function(e){ alert("Net error ,try later."); } }); } </script>
2 Method 2
【Effective? 】Is the platform returning js or json? This must be clarified! Assume that thestring returned by the background is stored in responseText, then
If it is js, thenvar result = eval("(" + responseText + ")");If it is json, then
var result = JSON.parse(responseText);
3 Method Three [Effective]
Add hidden fields,<input>Easy for js to read
var passflag=document.getElementById("autoflag");I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website! Recommended reading:
Detailed explanation of the steps for EL to obtain context parameters
Add ellipses when the text exceeds the specified number of lines
Detailed explanation of the steps to return to the previous page from the mini program sharing page
The above is the detailed content of What steps are needed to get ModelAndView with js. For more information, please follow other related articles on the PHP Chinese website!

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 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 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 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.

The shift from C/C to JavaScript requires adapting to dynamic typing, garbage collection and asynchronous programming. 1) C/C is a statically typed language that requires manual memory management, while JavaScript is dynamically typed and garbage collection is automatically processed. 2) C/C needs to be compiled into machine code, while JavaScript is an interpreted language. 3) JavaScript introduces concepts such as closures, prototype chains and Promise, which enhances flexibility and asynchronous programming capabilities.

Different JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.

JavaScript's applications in the real world include server-side programming, mobile application development and Internet of Things control: 1. Server-side programming is realized through Node.js, suitable for high concurrent request processing. 2. Mobile application development is carried out through ReactNative and supports cross-platform deployment. 3. Used for IoT device control through Johnny-Five library, suitable for hardware interaction.

I built a functional multi-tenant SaaS application (an EdTech app) with your everyday tech tool and you can do the same. First, what’s a multi-tenant SaaS application? Multi-tenant SaaS applications let you serve multiple customers from a sing


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

SublimeText3 Linux new version
SublimeText3 Linux latest version

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

Notepad++7.3.1
Easy-to-use and free code editor