spring web mvc tutorial

In this example, we will build an entry-level Web application using the Spring MVC framework. Spring MVC is one of the most important modules of the spring framework. It is based on a powerful

Recently wrote a Java Web project demo, using Maven to build;The backend uses spring + spring MVC + mybatis;The front end uses react + reflux + webpack, using the ES6 syntax, incidentally using the next jquery,bootstrap,echarts and other plugins, wrote two small demoThe first edition, also needs to be perfected continu

1. Add jar2. Web. XML configuration:>Xmlns= "Http://java.sun.com/xml/ns/javaee"Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"Xsi:schemalocation= "Http://java.sun.com/xml/ns/javaeeHttp://java.sun.com/xml/ns/javaee/web-app_2_5.xsd ">Springmvc.xml3.springmvc.xml ConfigurationXML version= "1.0" encoding= "UTF-8"?>Http://www.springframework.org/schema/beans"Xmlns:xsi= "http://www.w3.org/2001/XMLSchema-in

generally divided into parameter errors, exception returns, method error return (NULL), correct return, four ways. //Choose how to handle it (using enumerations to increase readability)://1. Use the error code to associate the error message with the error code (class HTTP). //Pros: Classify different anomalies in a simple way. //Disadvantages: Too many kinds, too many error codes, difficult to identify. //2. Direct the error message, using the wrapper, to return to the previous layer. //Advanta

 Spring is a very, very good Java framework, the main thing is to use its IOC container to help us rely on injecting and managing bean components in some programs, to achieve low coupling relationships, and ultimately to improve system scalability and maintainability, and it will be very, very enjoyable to use it to assist us in building Web projects. Spring's spring