srcmini在Spring MVC中, 我们可以一次创建多个控制器。需要使用@Controller注释映射每个控制器类。在这里, 我们看到了多个控制器的Spring MVC示例。步骤如下：
- 在Maven的情况下加载spring jar文件或添加依赖项
- 创建控制器类
- 在web.xml文件中提供控制器的条目
- 在单独的XML文件中定义bean
- 创建其他视图组件
- 启动服务器并部署项目
Spring MVC的目录结构
1.将依赖项添加到pom.xml
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.1.1.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>3.0-alpha-1</version>
</dependency>2.创建请求页面
让我们创建一个包含两个链接的简单JSP页面。
index.jsp
<html>
<body>
<a href="hello1">Spring MVC</a> ||
<a href="hello2">Spring Boot</a>
</body>
</html>3.创建控制器类
让我们创建两个控制器类, 每个类都返回特定的视图页面。
HelloController1.java
package com.srcmini;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class HelloController1 {
@RequestMapping("/hello1")
public String display()
{
return "viewpage1";
}
}HelloController2.java
package com.srcmini;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class HelloController2 {
@RequestMapping("/hello2")
public String display()
{
return "viewpage2";
}
}4.在web.xml文件中提供控制器的条目
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>SpringMVC</display-name>
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>5.在xml文件中定义bean
spring-servlet.xml
<?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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!-- Provide support for component scanning -->
<context:component-scan base-package="com.srcmini" />
<!--Provide support for conversion, formatting and validation -->
<mvc:annotation-driven/>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>6.创建其他视图组件
viewpage1.jsp
<html>
<body>
<p>Welcome to Spring MVC Tutorial</p>
</body>
</html>viewpage1.jsp
<html>
<body>
<p>Welcome to Spring Boot Tutorial</p>
</body>
</html>输出
下载此示例(使用Eclipse开发)
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