This article mainly introduces the json data interaction controller method of springmvc. The return value is a simple type, which is very practical. Friends in need can refer to how to interact with json when the return value of the controller method is a simple type such as String. What about interaction? Use @RequestBody. For example, the code is as follows: @RequestMapping(value="/ceshijson",produces="application/json;charset=UTF-8") @ResponseBody public String ceshijson(@RequestBody String channelId) throws IOException{ return channelId; If the code is in the above situation, the front desk will send
1. When the return value of the controller method is a simple type, how to interact with json?
Introduction: This article mainly introduces the json data interaction controller method of springmvc that returns a simple type , very practical value, friends in need can refer to
##2. Brief introduction to the c# expression tree Expression simple type comparison demo sample code
Introduction: The editor below will bring you a brief discussion of the c# expression tree Expression simple type comparison demo. The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor to take a look
3. In-depth understanding of MySQL Advanced Drifting (4)
Introduction: Join Cross Join The simplest type of join is the cross join, which is the product of multiplying the tables involved to create an all-encompassing product. Example: select * from student,person;//The result is a combination of the two tables. All columns of the two tables are combined to produce a result set containing all possible combinations. This type is called a cross join, and the number of rows in the resulting table after the join is the same multiplied by the number of rows in each table used for the join. The above cross-connection will have a great impact on the performance of the database server, so use
4 in the connection. Crazy XML study notes (8)---- -----Simple type of schema
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## Introduction: Value types include simple types (such as character types, floating point types, and integer types, etc.), collection types, and structural types. Reference types include class types, interface types, representative types and array types.
6.
C# Learning Diary 09---Data Type Struct TypeIntroduction: After learning the previous simple types, we are doing some common data operations and word processing, which seems to be enough, but when we encounter some complex data types , For example, the name, age, phone number, and address of each student must be entered in the class management system. If we handle it according to the simple data types we learned earlier, each time a student's information is entered, it will be stored in 4 different variables. This will cause too much work, is not intuitive, and is easy to confuse.
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The difference between T and question mark (wildcard) in java generics Introduction: The difference between T and question mark (wildcard) in java generics. Types originally include: simple types and complex types. After the introduction of generics, the complex types are divided into more details; 8. Understanding JavaScript primitive values and composite values ##Introduction: javascript Data types can be divided into two types: primitive types and reference types. Primitive types are also called basic types or simple types. The basic data types of JavaScript include Undefined, Null, Boolean, Number, and String. Reference types are also called complex types, which are Object in Javascript. Correspondingly, their values are also called primitive values and complex values respectively. They are more understandable with Java data types: ... 9. php common knowledge points Summary Introduction: PHP: 1. The difference between echo print print_r Echo is a PHP statement, print and print_r is a function. The statement has no return value, but the function can have a return value. Print can only print the values of simple type variables. Print_r can print complex variable values (arrays or objects) and Echo outputs one or more strings. 2. The difference between mysql_fetch_array() and mysql_fetch_row() mysql_fetch_array() returns according to... 10. Summary of common PHP knowledge points Introduction: PHP: 1. The difference between echo print print_r Echo is a PHP statement, print and print_r are functions, and the statement has no return value. Functions can have return values. Print can only print the values of simple type variables. Print_r can print complex variable values (arrays or objects) and Echo outputs one or more strings. 2. The difference between mysql_fetch_array() and mysql_fetch_row() mysql_fetch_array() returns according to... [Related Q&A recommendations]: javascript - typeof (new Date()) + 1 Why is the result "string" but not "number"
The above is the detailed content of 10 recommended articles about simple types. For more information, please follow other related articles on the PHP Chinese website!

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 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.

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'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.

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.


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