intellij idea 12 搭建maven web项目 freemarker + spring mvc
配置spring mvc ,写这篇文章的时候spring已经出了4.0 这里还是用稳定的3.2.7.RELEASE,先把spring和freemarker配置好
1.spring mvc配置
在web.xml中添加
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<!-- Spring MVC配置 --> <!-- ====================================== --> <servlet> <servlet-name>spring</servlet-name> <servlet- class >org.springframework.web.servlet.DispatcherServlet</servlet- class > <!-- 可以自定义servlet.xml配置文件的位置和名称,默认为WEB-INF目录下,名称为[<servlet-name>]-servlet.xml,如spring-servlet.xml <init-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/spring-servlet.xml</param-value> 默认 </init-param> --> <load-on-startup> 1 </load-on-startup> </servlet> <servlet-mapping> <servlet-name>spring</servlet-name> <url-pattern>*. do </url-pattern> </servlet-mapping> |
sping通过DispatherServlet做分发,如果不指定配置文件就是项目名-servlet.xml,这里已经制定了spring-servlet.xml
这里再看spring-servlet.xml的配置
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<?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:p= "http://www.springframework.org/schema/p" xsi:schemaLocation="http: //www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http: //www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http: //www.springframework.org/schema/context http: //www.springframework.org/schema/context/spring-context-3.0.xsd"> <!-- 启用spring mvc 注解 --> <context:annotation-config/> <!-- 设置使用注解的类所在的jar包 --> <context:component-scan base- package = "com.spring.controller" ></context:component-scan> <!-- 完成请求和注解POJO的映射 --> <bean class = "<span style=" background-color: rgb( 255 , 0 , 0 ); ">org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter</span>" /> <!-- freemarker的配置 --> <span style= "background-color: rgb(255, 0, 0);" ><bean id= "freemarkerConfigurer" class = "org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer" ></span> <property name= "templateLoaderPath"
value= "/WEB-INF/view/"
/> <property name= "defaultEncoding"
value= "GBK"
/> <property name= "freemarkerSettings" > <props> <prop key= "template_update_delay" > 10 </prop> <prop key= "locale" >zh_CN</prop> <prop key= "datetime_format" >yyyy-MM-dd HH:mm:ss</prop> <prop key= "date_format" >yyyy-MM-dd</prop> <prop key= "number_format" >#.##</prop> </props> </property> </bean> <!-- FreeMarker视图解析 如返回userinfo。。在这里配置后缀名ftl和视图解析器。。 --> <bean id= "viewResolver" class = "org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver" > <property name= "viewClass" value= "org.springframework.web.servlet.view.freemarker.FreeMarkerView"
/> <property name= "suffix"
value= ".ftl"
/> <property name= "contentType"
value= "text/html;charset=GBK"
/> <property name= "exposeRequestAttributes"
value= "true"
/> <property name= "exposeSessionAttributes"
value= "true"
/> <property name= "exposeSpringMacroHelpers"
value= "true"
/> </bean> </beans> |
<bean
id="freemarkerConfigurer"
class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">这个地方写入之后就报找不到类,原来光引用freemarker的类和spring-framework的类还不够,还少一个spring-context-support,添加这个类后正常了
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter 这里引用的spring版本为3.2.7 这个类已经是废弃的了,源码里注释了
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* * @deprecated
in Spring 3.2
in favor of * { @link
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter RequestMappingHandlerAdapter} */ @Deprecated public class AnnotationMethodHandlerAdapter extends
WebContentGenerator implements
HandlerAdapter, Ordered, BeanFactoryAware |
既然说了,那就用最新的,稍微找了下,没找到RequestMappingHandlerAdapter有什么区别,望指教
既然都配置好了,剩下就是写个controller了
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package
com.spring.controller; import org.springframework.stereotype.Controller; import org.springframework.ui.ModelMap; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; @Controller @RequestMapping ( "/message" ) public
class IndexController { @RequestMapping (value = "/index" , method = RequestMethod.GET) public
String index(HttpServletRequest request, HttpServletResponse response,ModelMap modelMap) { modelMap.put( "some" , "spring freemarker模板终能使用" ); return
"index" ; } } |
然后是freemarker模板,非常简单,文件放到/WEB-INF/view/下
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<html> <body> <h2>freemarker</h2> <div>${some}</div> </body> </html> |
既然配置好了,就开始启动测试下,然后就出现了各种问题。。。
首先就是几个类找不到,最经典的javax.servlet.http.HttpServletResponse和javax.servlet.http.HttpServletRequest 本来就是servlet-api.jar包里的,由于公司有私服,添加了几个都不对,先把现在正确的pom文件发下
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<?xml version= "1.0"
encoding= "UTF-8" ?> <project xmlns= "http://maven.apache.org/POM/4.0.0" <modelVersion> 4.0 . 0 </modelVersion> <groupId>SpringMvc</groupId> <artifactId>SpringMvc</artifactId> <version> 1.0 -SNAPSHOT</version> <dependencies> <span style= "background-color: rgb(255, 0, 0);" ><dependency></span> <groupId>org.apache.maven</groupId> <artifactId>maven-plugin-api</artifactId> //这个经过我的测试,发现根本不用添加 <version> 3.1 . 0 </version> </dependency> <span style= "background-color: rgb(255, 0, 0);" > <dependency></span> <groupId>org.apache.tomcat</groupId> <artifactId>servlet-api</artifactId> //这个经过我的测试,发现根本不用添加 <version> 6.0 . 37 </version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version> 3.2 . 7 .RELEASE</version> </dependency> <dependency> <groupId>servletapi</groupId> <artifactId>servlet-api</artifactId> //这个是主要的servlet-api,在公共maven仓库上找了半天都没找对,因为我搜索的时候都是搜索的servlet-api,后来才知道直接搜servletapi就对了 <version> 2.4 - 20040521 </version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version> 3.2 . 6 .RELEASE</version> </dependency> <dependency> <groupId>org.freemarker</groupId> <artifactId>freemarker</artifactId> <version> 2.3 . 20 </version> </dependency> <dependency> <groupId>org.springframework.ws</groupId> <artifactId>spring-ws-core</artifactId> <version> 2.1 . 4 .RELEASE</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.mortbay.jetty</groupId> <artifactId>jetty-maven-plugin</artifactId> <configuration> <scanIntervalSeconds> 1 </scanIntervalSeconds> <stopPort> 9966 </stopPort> <stopKey>foo</stopKey> <connectors> <connector implementation= "org.eclipse.jetty.server.nio.SelectChannelConnector" > <port> 7777 </port> <maxIdleTime> 60000 </maxIdleTime> </connector> </connectors> <webAppSourceDirectory> ${basedir}/webapp </webAppSourceDirectory> <webAppConfig> <contextPath>/spring</contextPath> </webAppConfig> </configuration> </plugin> </plugins> </build> </project> |
终于知道了添加servlet-api的包应该是哪个,真是郁闷http://www.mvnrepository.com/artifact/servletapi/servlet-api/2.4-20040521
启动成功了之后,访问地址http://127.0.0.1:7777/spring/message/index.do,报错
javax.servlet.ServletException: No adapter for handler [controller.UserInfoController@1470933]: The DispatcherServlet configuration needs to include a HandlerAdapter that supports this handler
之前完全没遇上过这种错,上网查说要加了两个adapter,就可以了
<bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>
<bean class="org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter"/>
发现不行,后来修改了spring-servlet.xml 把这里又改回来了
<!-- 完成请求和注解POJO的映射 -->
<bean
class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"
/>就可以了
废弃的方法就废弃吧,先解决问题再说
在后面就是想传对象到freemarker里,原来我记得使用过modelandview,但是好像要添加什么配置,因为使用这个访问不到放到modelandview里的对象,所以有换成了modelmap,终于完成了
这次主要目的就是在intellij上配置一个maven 的web项目,在加上spring mvc和freemarker,没想到出现这么多的问题,使用jetty插件的目的是在项目启动期间,修改freemarker模板能即时生效,而
使用独立tomcat的话,还得部署才行,而插件很方便。这些东西配置好之后,就该加上mybatis和mongodb了
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