SPRINGMVC Environment Construction---XML version and annotated version

I. Establishment of JAVAWEB project (based on IntelliJ 14.0.3 building)

1, build a Java project, create a new folder under the Project WebApp, and then create a new Web-inf folder under the folder;

2. Build the Web. xml file under the Web-inf folder, copy the basic document structure from the Tomcat installation path/conf/web.xml, and modify the corresponding code to utf-8;

3. Create JSP folder under Web-inf to store relevant JSP files (V in MVC);

4, in the Web-inf set up Lib folder, used to store the relevant jar package;

5. Build the Web. xml file under Web-inf.

The completed project catalog is as follows:

Two, spring configuration:

1. The package that needs to be imported is as follows:

2. Web. XML configuration:

1) Open the Web. xml file in the project and note that the schema constraint for the Web-app tag of the modified file is as follows:

<?xml version= "1.0" encoding= "iso-8859-1"? ><web-app 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/javaee                      Http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd "         version=" 3.0 "></<web-app >

2) Add a spring servlet to Web. XML to allow the program to load this servlet when it is started, configured as follows:

<servlet>        <servlet-name>spring</servlet-name>        <servlet-class>            Org.springframework.web.servlet.DispatcherServlet        </servlet-class>        <load-on-startup>1</ Load-on-startup></servlet>

Note:<load-on-startup> element tag container whether the servlet is loaded when it is started

1) Its value must be an integer indicating the order in which the servlet should be loaded;

2) A value of 0 or greater than 0 o'clock indicates that the container loads and initializes the servlet when the application is started;

3) When the value is less than 0 or unspecified, the container will not load until the servlet is selected;

4) The lower the value of a positive number, the higher the priority of the servlet, and the more the application starts to load;

5) At the same time, the container will be loaded in its own order of choice.

3) Configure Spring-url interception:

<servlet-mapping>        <servlet-name>spring</servlet-name>        <url-pattern>/</ Url-pattern></servlet-mapping>

Note:<url-pattern>/</url-pattern> indicates that all URL requests with suffix/are blocked by spring

4) Configure the character encoding filter:

    <filter>        <filter-name>encodingFilter</filter-name>        <filter-class> org.springframework.web.filter.characterencodingfilter</filter-class>        <init-param>            < param-name>encoding</param-name>            <param-value>UTF-8</param-value>        </init-param >        <init-param>            <param-name>forceEncoding</param-name>            <param-value>true </param-value>        </init-param>    </filter>    <filter-mapping>        < filter-name>encodingfilter</filter-name>        <url-pattern>/</url-pattern>    </ Filter-mapping>

5) welcome-page Configuration:

  <welcome-file-list>        <welcome-file>index.html</welcome-file>        <welcome-file> index.htm</welcome-file>        <welcome-file>index.jsp</welcome-file>  </ Welcome-file-list>

2. Spring-servlet.xml configuration (mainly URL mapping, page directory and controller configuration)

1) Configure the Spring-servlet.xml file under the Web-inf folder (the name depends on the <servlet-name> tag in the Web. xml file)

2) The annotated version is configured as follows:

<?xml version= "1.0" encoding= "UTF-8"? ><beans xmlns= "Http://www.springframework.org/schema/beans" xmlns: Xsi= "Http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc= "Http://www.springframework.org/schema/mvc" Xmlns:co ntext= "Http://www.springframework.org/schema/context" xsi:schemalocation= "Http://www.springframework.org/schema /beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/ MVC http://www.springframework.org/schema/mvc/spring-mvc.xsd "> <context:component-scan base-package=" cn.com        "> <context:include-filter type=" annotation "expression=" Org.springframework.stereotype.Controller "/> <context:exclude-filter type= "Annotation" expression= "Org.springframework.stereotype.Service"/> </ context:component-scan> <mvc:annotation-driven></mvc:annotation-driven> <bean class= " Org.springframework.web.servlet.view.InternalResourceViewResoLver "> <property name=" prefix "value="/web-inf/jsp "/> <property name=" suffix "value=". JSP "/&gt    ; </bean></beans>

Description

a) <context:component-scan>: Configuring the Spring component Scan, base-package need to configure the package path for the project

b) <bean>: path resolution for the steering page. Prefix: prefix, suffix: suffix

3) The XML version is configured as follows:

<?xml version= "1.0" encoding= "UTF-8"? ><beans xmlns= "Http://www.springframework.org/schema/beans" xmlns:       Xsi= "Http://www.w3.org/2001/XMLSchema-instance" xsi:schemalocation= "Http://www.springframework.org/schema/beans Http://www.springframework.org/schema/beans/spring-beans-2.5.xsd "> <bean class=" Org.springframework.web.servlet.view.InternalResourceViewResolver "> <property name=" prefix "value="/web-inf /jsp "/> <property name=" suffix "value=". jsp "/> </bean> <bean id=" urlmapping "class=" Org.s Pringframework.web.servlet.handler.SimpleUrlHandlerMapping "> <property name=" Mappings "> <pro ps> <prop key= "/index/" >IndexAction</prop> </props> </property&gt    ; </bean> <bean id= "indexaction" class= "cn.com.IndexAction" > <property name= "View" > & Lt;value>index</value> </property>    </bean></beans> 

Note: When a bean is configured with attributes (including bean-formatted attributes), the bean's corresponding Java file must define a property value that is the same as the name of the property, and the getter and setter methods that have this attribute value are required.

3, Controller code implementation:

1) Annotated version:

2) XML version:

4. index.jsp File Code:

<%string data = Request.getattribute ("Hello"). toString (); Response.getwriter (). Write (data);%>

Three, tomcat configuration:

Tomcat version: apache-tomcat-7.0.54

Place the WebApp folder under the project package into the Apache-tomcat-7.0.54\webapps\ directory of the Tomcat decompression package, as follows:

Note The JSP and Lib folders are also moved to the Web-inf folder directory

Ps:tomcat's Debug method:

Add Debug.bat under the Apache-tomcat-7.0.54\bin directory, as follows:

Four, the effect shows:

1) Annotated version:

2) XML version:

Reference text:

Http://www.cnblogs.com/shinejaie/p/5244258.html

Http://www.cnblogs.com/shinejaie/p/5248159.html

SPRINGMVC Environment Construction---XML version and annotated version