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Summary Two pages in totalWhen accessing the product list directly, it will judge whether the user is logged in. If the user is not logged in, it will jump for 3 secondsIf the user logs in, there is no jumpLogin page: for login page, enter user name and password directly. Compare with database to loginAnd save the password locally ps usually ne ...

Mailbox activation implementation process analysis code implementation 1) process analysis ① click the link to activate the email: http://localhost:8080/store/user/active?code=xxx ② it is necessary to write a process for / active path in UserServlet Get activation code Call service layer to complete activation Page Jump, ...

Article directory Data back writing Default mode Through Model mode Book.java HelloController.java book.jsp springmvc.xml web.xml @ModelAttribute annotation implementation Modify parameter echo variable name Configure global variable names exception handling Exception handler errors.jsp Data back writing Data up ...

  Let's first go to / etc/hosts to add information vim /etc/hosts Add the following information: Pass apache-rocketmq.tar.gz to / usr/local/software through XFTP tool Then add / usr / local / Apache rocketmq directory, and extract Apache rocketmq.tar.gz to this directory [root@bogon apache-rocketmq]# mkdir /usr/local ...

It's really hard to work on this editor in the last day or two. Fortunately, it's finally finished. Scenario reproduction:     Implementation steps: [1] import corresponding dependency and static files     The dependency is the core dependency. If you think about io and fileupload, you must also need it. Once again ...

JavaBean is a special class. • design rules for JavaBean s (1) JavaBean is a public class   • (2) the JavaBean class has a common parameterless constructor. (3) all properties of JavaBean s are defined as private. • (4) in JavaBean s, you need to provide two public methods for each attribute. Suppose th ...

1. Overview 2. Struts2 Quick Start Program 2.1 Development Process Comparison 2.2 Introducing dependencies 2.2 Create a jsp page 2.3 Configuring a front-end controller in web.xml 2.4 Create struts.xml configuration file 2.4 Create a HelloAction class 2.5 Configuring HelloAction in the struts.xml file 2.6 Add connections in i ...

Spring MVC file upload) SpringMVC-day02 Spring MVC file upload 1. Use maven to introduce two more jars' commons-io-2.6. Jar commons-fileupload-1.3.3. Jar based on the Spring jar package and spring MVC jar package.` 2. Spring MVC needs to configure processor mapper, processor adapter, view parser a ...

Using struts to complete adding, deleting, modifying and checkingIdeas: 1. Import related pom dependencies (struts, custom tag library dependency) 2. Import the paginated tag class, z.tld, and complete the configuration of web.xml 3. dao layer to access data 4. The web layer calls the dao layer to return data to the foreground. 5. Configur ...

Article directory I. use QQ email to send mail 1. Get the authorization code of QQ email 2. Import jar package mail.jar 3. Test code Verification code implementation 1. Principle of picture verification code 2. Verification code tool class 3.VerifyCodeServlet 4.UserServlet.java 5.login.jsp ...