JSP

I. Introduction to SQL injectionSQL injection is one of the most common methods of network attack, it is not to exploit the bugs of the operating system to implement the attack, but to neglect the programmer's programming, to realize the login

Foreword : There are often such cases, the data format obtained from the database is not what we want to show on the JSP page, I recommend to everyone the following three ways.Database SQL Direct ConversionThere is some data that we can direct

When you connect to a MySQL database locally, the previous method is to import the JDBC jar package directly into the project LIB, so that you can get a connection with just the following code. String user= "xxx"; String password= "123"

RoleIn our development, the interface and program code is done separately to do the art of the interface but the artist does not understand the Java language if we write Java code in the JSP file, will affect the art work if we use custom tags, Then

After using JavaBean in JSP, we can realize the separation of HTML code and Java code, it is easier for JSP to develop and maintain. So JavaBean became a necessary tool for JSP programmers.Although JavaBean is a Java class, it also has some of its

JavaBean is a Java class, referred to as a bean, that has a feature or ability to handle a business by encapsulating properties and methods. For example, you can create a user's Bean class:This class is actually a model class, involving some

Public Final classzzz_jspextendsHttpjspbaseImplementsjspsourcedependent{ Public void_jspinit () {} Public void_jspdestroy () {} Public void_jspservice (HttpServletRequest request, httpservletresponse response)throwsException {FinalPageContext

1. Custom View ResolverPackage Com.zhaochao.controller;import Java.util.hashmap;import Java.util.locale;import java.util.Map;import Java.util.set;import Org.apache.commons.logging.log;import Org.apache.commons.logging.logfactory;import

Problem:Spring MVC development process, often give model AddAttribute, and then through the El in JSP display, such as ${msg},However, there are times when the JSP finally shows the ${msg} instead of the MSG assignment.Spring ControllerImport

.... Workaround:This problem does not occur until MyEclipse 10.0, window-->preferences-->myeclipse-->validation-->javascript Validator for Js Files Remove the Tick box from the Bulid checkbox.Encounter difficulties with JSP code onclick=

Another problem encountered today is that when you start Tomcat, the java.lang.NullPointerException at Org.apache.jsp.**_jsp.jspinit (Index_jsp.java) exception, Because I just configured the server, thinking that the JSP page has a problem, but

Recently in the personal blog, for this project, the choice of text editor is relatively important, in Baidu Ueditor, Markdown and so on in the end still choose CKEditor, for ckeditor introduction since needless to say,Online for how to configure

Today we have a strange problem:The JSP code is as follows: H1 > data comparison ${name}H1>In the controller, there are assignments: @RequestMapping (value = "/index.do") public String index (Modelmap modelmap) { Modelmap.put ("name", "

This article mainly addresses bug descriptions (mainly official documents) that use Ueditor images or file uploads that are not successfully read under Spring MVC framework mode.1. Apply Ueditor to the project.   (JSP version) 1.1 refer to the JSP

Javaweb Learning Summary (15)--jsp Basic grammarAny language has its own syntax, in Java, JSP, although it is a Java application, but still has its own expanded syntax, and in the JSP, all the Java statements can be used.First, the JSP template

Javaweb Learning Summary (19)--jsp tag One, JSP tag introductionJSP tags, also known as JSP Action (JSP actions) element, it is used to provide business logic function in JSP page, avoid writing Java code directly in JSP page, which makes JSP page

Java is an interpreted language, but its source files are compiled into Java bytecode, the. class file, and then run in the Java Virtual machine. JSP is a web development technique that runs in a particular Web container, and the Web container first

in the eclipse environment with Maven: Javax.servlet.jsp.PageContext cannot is resolved to a type. This is due to the lack of introduction of JSP-API-induced problems, introduced in Pom.xml:javax.servlet jsp-api2.0Problem Solving!maven resolves

I want to pass the values from the first JSP page to the second JSP page. The jump code in JavaScript is as followswindow.location.href= "Uppasswd.jsp?userpassword=${requestscope.result.userpassword}";The second page uses a Java fragment to fetch

1. Software PreparationJDK Latest Version Jdk-8u45-windows-x64.exeTomcat Latest Version 32-bit/64-bit Windows Service InstallerEclipse IDE for Java EE developers latest version Eclipse-jee-luna-sr2-win32-x86_64.zipInstallation of the 2.JAVA