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
<!-- 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
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="/schema/beans"xmlns:xsi="/2001/XMLSchema-instance" xmlns:p="/schema/p"xmlns:context="/schema/context"xsi:schemaLocation="/schema/beans /schema/beans/spring-beans-3.0.xsd/schema/aop /schema/aop/spring-aop-3.0.xsd/schema/tx /schema/tx/spring-tx-3.0.xsd/schema/context/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="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/><!-- freemarker的配置 --><bean id="freemarkerConfigurer"class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer"><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
** @deprecated in Spring 3.2 in favor of* {@link org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter RequestMappingHandlerAdapter}*/@Deprecatedpublic class AnnotationMethodHandlerAdapter extends WebContentGeneratorimplements 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
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
<html><body><h2>freemarker</h2><div>${some}</div></body></html>
既然配置好了,就开始启动测试下,然后就出现了各种问题。。。
首先就是几个类找不到,最经典的javax.servlet.http.HttpServletResponse和javax.servlet.http.HttpServletRequest 本来就是servlet-api.jar包里的,由于公司有私服,添加了几个都不对,先把现在正确的pom文件发下
<?xml version="1.0" encoding="UTF-8"?><project xmlns="/POM/4.0.0"xmlns:xsi="/2001/XMLSchema-instance"xsi:schemaLocation="/POM/4.0.0 /xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>SpringMvc</groupId><artifactId>SpringMvc</artifactId><version>1.0-SNAPSHOT</version><dependencies><dependency><groupId>org.apache.maven</groupId><artifactId>maven-plugin-api</artifactId>//这个经过我的测试,发现根本不用添加<version>3.1.0</version></dependency><dependency><groupId>org.apache.tomcat</groupId><artifactId>servlet-api</artifactId>//这个经过我的测试,发现根本不用添加<version>6.0.37</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>3.2.7.RELEASE</version></dependency><dependency><groupId>servletapi</groupId><artifactId>servlet-api</artifactId> //这个是主要的servlet-api,在公共maven仓库上找了半天都没找对,因为我搜索的时候都是搜索的servlet-api,后来才知道直接搜servletapi就对了<version>2.4-0521</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-context-support</artifactId><version>3.2.6.RELEASE</version></dependency><dependency><groupId>org.freemarker</groupId><artifactId>freemarker</artifactId><version>2.3.20</version></dependency><dependency><groupId>org.springframework.ws</groupId><artifactId>spring-ws-core</artifactId> <version>2.1.4.RELEASE</version></dependency></dependencies><build><plugins><plugin><groupId>org.mortbay.jetty</groupId><artifactId>jetty-maven-plugin</artifactId><configuration><scanIntervalSeconds>1</scanIntervalSeconds><stopPort>9966</stopPort><stopKey>foo</stopKey><connectors><connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector"><port>7777</port><maxIdleTime>60000</maxIdleTime></connector></connectors><webAppSourceDirectory>${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/artifact/servletapi/servlet-api/2.4-0521
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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