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Chapter IV spring MVC core technology 1. Forwarding and redirection forward: view full path redirect: view full path 1.1 java code @Controller public class MyController { * The controller method returns MOdelAndView Realize forwarding forward * grammar: mv.setViewName("forward:View full path") * * forward Features ...

Spring MVC has three ways to handle exceptions: Use the simple exception handler SimpleMappingExceptionResolver provided by Spring MVC.Implement the exception handling interface HandlerExceptionResolver of Spring and customize your own exception handler.Use the @ ExceptionHandler annotation to implement exception handling 1. @ExceptionHandler  ...

1. Review MVC 1.1 what is MVC MVC is the abbreviation of model, view and controller. It is a software design specification. It is a method to organize code by separating business logic, data and display. The main function of MVC is to reduce the two-way coupling between view and business logic. MVC is not a design pattern, MVC is an archi ...

catalogue preface HandlerMethod ServletInvocableHandlerMethod InvocableHandlerMethod summary preface         Through the previous article, we know the general process of Spring MVC executing the Controller method. The important step is to find the appropriate back-end processor (handler) to execute the target method ...

1. JSON 1.1 What is JSON JSON (JavaScript Object Notation) is a lightweight data exchange format. JSON uses JavaScript syntax to describe data objects, uses a language-independent text format, and is easy to store and exchange. The network media type of JSON is application/json. 1.2 JSON Scope of Use JSON writes data objects based on ...

4. Data response of spring MVC 4.1 data response mode of spring MVC 1) Page Jump  directly return string  returned by ModelAndView object 2) Write back data  directly return string  return object or set 4.2 page Jump 1. Return string form Directly return string: this method will splice the returned string with the front suffix ...

catalogue Environment construction database Create Maven project Configuration item Write project Create package structure Writing back-end code pojo package util package   service package serviceimpl package controller package Create front-end display page Possible problems Tomcat startup failed. Garbled code problem We ...

exception handling Exception handler Exception classification management code: import org.springframework.stereotype.Component; import org.springframework.web.servlet.HandlerExceptionResolver; import org.springframework.web.servlet.ModelAndView; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletRespon ...

Two months ago, I completed the Spring Framework with the Spring Framework tutorial video of Mr. Wang He, the power node of station b. During the learning process, I tapped the code involved in the video line by line, and sorted out the materials related to the introduction of Spring. Here I record my notes and some insights during the learning ...

springMVC Servlet------------>jsp out.print() out.write() model1 jsp + javabean model2 MVC jsp+servlet+javabean M:model Java class 5: View view C: controller servlet frame ssh: struts1 | struts2 | springmvc spring hibernate ssm: springmvc spring mybatis jsp jstl+el | ajax:json M: Model ordinary java class mybatis: persiste ...