在IDEA中新建Maven Web项目javaee_ex12。在pom.xml文件中加入spring-webmvc及Servlet等依赖。下一步,配置tomcat服务器。下一步,依次添加Maven项目的默认目录main/java和main/resourses,并在main/java中创建包com.javaee.ex12.controller,在main/resourses中创建Spring MVC配置文件config/spring-mvc.xml,给出相应代码。下一步,在web.xml中添加编码过滤器及前端控制器配置信息(过滤器须放在前面),给出相应代码。下一步,在com.javaee.ex12.controller包中添加控制器CourseController,其中包含一个方法toCourseAddBasic作用为return "course/add_course_basic",包含另一个方法courseAddBasic,参数中int cid, String cname, int period, String bname, String pub, float price, Model model),使用model.addAttribute。 下一步,根据处理器方法toCourseAddBasic的映射路径,在index.jsp文件中添加的跳转链接,向toCourseAddBasic方法发送get请求,给出相应代码。
时间: 2023-07-15 07:10:43 浏览: 83
首先,我们需要在pom.xml文件中加入spring-webmvc及Servlet等依赖:
```xml
<dependencies>
<!-- Spring MVC -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.2.8.RELEASE</version>
</dependency>
<!-- Servlet API -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
</dependencies>
```
接下来,我们需要配置Tomcat服务器。在IDEA中,选择“Run/Debug Configurations” -> “Tomcat Server” -> “Local”,然后配置相应的信息。
然后,我们需要依次添加Maven项目的默认目录main/java和main/resources,并在main/java中创建包com.javaee.ex12.controller,在main/resources中创建Spring MVC配置文件config/spring-mvc.xml,给出相应代码:
```xml
<!-- spring-mvc.xml -->
<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"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!-- 开启注解驱动 -->
<mvc:annotation-driven />
<!-- 视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
<!-- 控制器扫描 -->
<context:component-scan base-package="com.javaee.ex12.controller" />
</beans>
```
然后,在web.xml中添加编码过滤器及前端控制器配置信息(过滤器须放在前面),给出相应代码:
```xml
<!-- web.xml -->
<web-app>
<!-- 编码过滤器 -->
<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>
<!-- 前端控制器 -->
<servlet>
<servlet-name>springMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:config/spring-mvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
```
然后,在com.javaee.ex12.controller包中添加控制器CourseController,其中包含一个方法toCourseAddBasic作用为return "course/add_course_basic",包含另一个方法courseAddBasic(参数中int cid, String cname, int period, String bname, String pub, float price, Model model),使用model.addAttribute。代码如下:
```java
package com.javaee.ex12.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
@RequestMapping("/course")
public class CourseController {
@GetMapping("/toCourseAddBasic")
public String toCourseAddBasic() {
return "course/add_course_basic";
}
@PostMapping("/courseAddBasic")
public String courseAddBasic(int cid, String cname, int period, String bname, String pub, float price, Model model) {
model.addAttribute("cid", cid);
model.addAttribute("cname", cname);
model.addAttribute("period", period);
model.addAttribute("bname", bname);
model.addAttribute("pub", pub);
model.addAttribute("price", price);
return "course/show_course_basic";
}
}
```
最后,在index.jsp文件中添加的跳转链接,向toCourseAddBasic方法发送get请求,给出相应代码:
```jsp
<a href="${pageContext.request.contextPath}/course/toCourseAddBasic">添加课程</a>
```