spring mvc RESTful url

详细讲解spring rest使用,简单例子如下:

1. /blog/ 1 HTTP GET => 得到id = 1 的blog
2. /blog/1 HTTP DELETE => 删除 id = 1 的blog
3. /blog/1 HTTP PUT => 更新id = 1 的blog
4. /blog HTTP POST => 新增BLOG

首先，我们带着如下三 个问题 查看本文。
1. 如何在java构造没有扩展名的RESTful url,如 /forms/1,而不是 /forms/1.do

2. 由于我们要构造没有扩展名的url本来是处理静态资源的容器映射的，现在被我们的spring占用了，冲突怎么解决?

3. 浏览器的form标签不支持提交delete,put请求，如何曲线解决?

spring mvc rest 实现

spring mvc的resturl是通过@RequestMapping 及@PathVariable annotation提供的,通过如@RequestMapping(value="/blog/{id}",method=RequestMethod.DELETE)即可处理/blog/1 的delete请求.

1. @RequestMapping (value= "/blog/{id}" ,method=RequestMethod.DELETE)
2. public ModelAndView delete( @PathVariable Long id,HttpServletRequest request,HttpServletResponse response) {
3. blogManager.removeById(id);
4. return new ModelAndView(LIST_ACTION);
5. }

@RequestMapping(value="/blog/{id}",method=RequestMethod.DELETE)
public ModelAndView delete(@PathVariable Long id,HttpServletRequest request,HttpServletResponse response) {
	blogManager.removeById(id);
	return new ModelAndView(LIST_ACTION);
}

@RequestMapping @PathVariable如果URL中带参数，则配合使用，如

1. @RequestMapping (value= "/blog/{blogId}/message/{msgId}" ,method=RequestMethod.DELETE)
2. public ModelAndView delete( @PathVariable ( "blogId" ) Long blogId, @PathVariable ( "msgId" ) Long msgId,HttpServletRequest request,HttpServletResponse response) {
3. }

@RequestMapping(value="/blog/{blogId}/message/{msgId}",method=RequestMethod.DELETE)
public ModelAndView delete(@PathVariable("blogId") Long blogId,@PathVariable("msgId") Long msgId,HttpServletRequest request,HttpServletResponse response) {
}

spring rest配置指南

1. spring mvc web.xml配置

1. <!-- 该servlet为tomcat,jetty等容器提供,将静态资源映射从/改为/static/目录，如原来访问 http://localhost/foo.css ,现在http://localhost/static/foo.css -->
2. < servlet-mapping >
3. < servlet-name > default </ servlet-name >
4. < url-pattern > /static/* </ url-pattern >
5. </ servlet-mapping >
6. < servlet >
7. < servlet-name > springmvc </ servlet-name >
8. < servlet-class > org.springframework.web.servlet.DispatcherServlet </ servlet-class >
9. < load-on-startup > 1 </ load-on-startup >
10. </ servlet >
12. <!-- URL重写filter,用于将访问静态资源http://localhost/foo.css 转为http://localhost/static/foo.css -->
13. < filter >
14. < filter-name > UrlRewriteFilter </ filter-name >
15. < filter-class > org.tuckey.web.filters.urlrewrite.UrlRewriteFilter </ filter-class >
16. < init-param >
17. < param-name > confReloadCheckInterval </ param-name >
18. < param-value > 60 </ param-value >
19. </ init-param >
20. < init-param >
21. < param-name > logLevel </ param-name >
22. < param-value > DEBUG </ param-value >
23. </ init-param >
24. </ filter >
25. < filter-mapping >
26. < filter-name > UrlRewriteFilter </ filter-name >
27. < url-pattern > /* </ url-pattern >
28. </ filter-mapping >
30. <!-- 覆盖default servlet的/, springmvc servlet将处理原来处理静态资源的映射 -->
31. < servlet-mapping >
32. < servlet-name > springmvc </ servlet-name >
33. < url-pattern > / </ url-pattern >
34. </ servlet-mapping >
36. <!-- 浏览器不支持put,delete等method,由该filter将/blog?_method=delete转换为标准的http delete方法 -->
37. < filter >
38. < filter-name > HiddenHttpMethodFilter </ filter-name >
39. < filter-class > org.springframework.web.filter.HiddenHttpMethodFilter </ filter-class >
40. </ filter >
42. < filter-mapping >
43. < filter-name > HiddenHttpMethodFilter </ filter-name >
44. < servlet-name > springmvc </ servlet-name >
45. </ filter-mapping >

	<!-- 该servlet为tomcat,jetty等容器提供,将静态资源映射从/改为/static/目录，如原来访问 http://localhost/foo.css ,现在http://localhost/static/foo.css -->
	<servlet-mapping>
		<servlet-name>default</servlet-name>
		<url-pattern>/static/*</url-pattern>
	</servlet-mapping>
	<servlet>
	    <servlet-name>springmvc</servlet-name>
	    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
	    <load-on-startup>1</load-on-startup>
	</servlet>
	
	<!-- URL重写filter,用于将访问静态资源http://localhost/foo.css 转为http://localhost/static/foo.css -->
	<filter>
		<filter-name>UrlRewriteFilter</filter-name>
		<filter-class>org.tuckey.web.filters.urlrewrite.UrlRewriteFilter</filter-class>
		<init-param>
		    	<param-name>confReloadCheckInterval</param-name>
		    	<param-value>60</param-value>
    		</init-param>
		<init-param>
            		<param-name>logLevel</param-name>
            		<param-value>DEBUG</param-value>
        	</init-param>    	
	</filter>
	<filter-mapping>
		<filter-name>UrlRewriteFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	
	<!-- 覆盖default servlet的/, springmvc servlet将处理原来处理静态资源的映射 -->
	<servlet-mapping>
	    <servlet-name>springmvc</servlet-name>
	    <url-pattern>/</url-pattern>
	</servlet-mapping>
	
	<!-- 浏览器不支持put,delete等method,由该filter将/blog?_method=delete转换为标准的http delete方法 -->
	<filter>
		<filter-name>HiddenHttpMethodFilter</filter-name>
		<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
	</filter>
	
	<filter-mapping>
		<filter-name>HiddenHttpMethodFilter</filter-name>
		<servlet-name>springmvc</servlet-name>
	</filter-mapping>

2. webapp/WEB-INF/springmvc-servlet.xml配置,使用如下两个class激活@RequestMapping annotation

1. <bean class = "org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
2. <bean class = "org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />

    <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"/>
    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>

完整配置

1. <beans default -autowire= "byName" >
3. <!-- 自动搜索@Controller 标注的类 -->
4. <context:component-scan base-package = "com.**.controller" />
6. <bean class = "org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
8. <bean class = "org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
10. <!-- Default ViewResolver -->
11. <bean id="viewResolver" class = "org.springframework.web.servlet.view.InternalResourceViewResolver" >
12. <property name="viewClass" value= "org.springframework.web.servlet.view.JstlView" />
13. <property name="prefix" value= "/pages" />
14. <property name="suffix" value= ".jsp" ></property>
15. </bean>
17. <bean id="messageSource" class = "org.springframework.context.support.ResourceBundleMessageSource" p:basename= "i18n/messages" />
19. <!-- Mapping exception to the handler view -->
20. <bean id="exceptionResolver" class = "org.springframework.web.servlet.handler.SimpleMappingExceptionResolver" >
21. <!-- to /commons/error.jsp -->
22. <property name="defaultErrorView" value= "/commons/error" />
23. <property name="exceptionMappings" >
24. <props>
25. </props>
26. </property>
27. </bean>
29. </beans>

<beans default-autowire="byName"   >

	<!-- 自动搜索@Controller标注的类 -->
	<context:component-scan base-package="com.**.controller"/>
	
    <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"/>

    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>

    <!-- Default ViewResolver -->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/pages"/>
        <property name="suffix" value=".jsp"></property>
    </bean>
    
    <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource" p:basename="i18n/messages"/>

    <!-- Mapping exception to the handler view -->
    <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
    	<!-- to /commons/error.jsp -->
        <property name="defaultErrorView" value="/commons/error"/>
        <property name="exceptionMappings">
            <props>
            </props>
        </property>
    </bean>
        
</beans>

3. Controller编写

1. /**
2. * @RequestMapping("/userinfo") 具有层次关系，方法级的将在类一级@RequestMapping之一,
3. * 如下面示例, 访问方法级别的@RequestMapping("/new"),则URL为 /userinfo/new
4. */
5. @Controller
6. @RequestMapping ( "/userinfo" )
7. public class UserInfoController extends BaseSpringController{
8. //默认多列排序,example: username desc,createTime asc
9. protected static final String DEFAULT_SORT_COLUMNS = null ;
11. private UserInfoManager userInfoManager;
13. private final String LIST_ACTION = "redirect:/userinfo" ;
15. /**
16. * 通过spring自动注入
17. **/
18. public void setUserInfoManager(UserInfoManager manager) {
19. this .userInfoManager = manager;
20. }
22. /** 列表 */
23. @RequestMapping
24. public ModelAndView index(HttpServletRequest request,HttpServletResponse response,UserInfo userInfo) {
25. PageRequest<Map> pageRequest = newPageRequest(request,DEFAULT_SORT_COLUMNS);
26. //pageRequest.getFilters(); //add custom filters
28. Page page = this .userInfoManager.findByPageRequest(pageRequest);
29. savePage(page,pageRequest,request);
30. return new ModelAndView( "/userinfo/list" , "userInfo" ,userInfo);
31. }
33. /** 进入新增 */
34. @RequestMapping (value= "/new" )
35. public ModelAndView _new(HttpServletRequest request,HttpServletResponse response,UserInfo userInfo) throws Exception {
36. return new ModelAndView( "/userinfo/new" , "userInfo" ,userInfo);
37. }
39. /** 显示 */
40. @RequestMapping (value= "/{id}" )
41. public ModelAndView show( @PathVariable Long id,HttpServletRequest request,HttpServletResponse response) throws Exception {
42. UserInfo userInfo = (UserInfo)userInfoManager.getById(id);
43. return new ModelAndView( "/userinfo/show" , "userInfo" ,userInfo);
44. }
46. /** 编辑 */
47. @RequestMapping (value= "/{id}/edit" )
48. public ModelAndView edit( @PathVariable Long id,HttpServletRequest request,HttpServletResponse response) throws Exception {
49. UserInfo userInfo = (UserInfo)userInfoManager.getById(id);
50. return new ModelAndView( "/userinfo/edit" , "userInfo" ,userInfo);
51. }
53. /** 保存新增 */
54. @RequestMapping (method=RequestMethod.POST)
55. public ModelAndView create(HttpServletRequest request,HttpServletResponse response,UserInfo userInfo) throws Exception {
56. userInfoManager.save(userInfo);
57. return new ModelAndView(LIST_ACTION);
58. }
60. /** 保存更新 */
61. @RequestMapping (value= "/{id}" ,method=RequestMethod.PUT)
62. public ModelAndView update( @PathVariable Long id,HttpServletRequest request,HttpServletResponse response) throws Exception {
63. UserInfo userInfo = (UserInfo)userInfoManager.getById(id);
64. bind(request,userInfo);
65. userInfoManager.update(userInfo);
66. return new ModelAndView(LIST_ACTION);
67. }
69. /** 删除 */
70. @RequestMapping (value= "/{id}" ,method=RequestMethod.DELETE)
71. public ModelAndView delete( @PathVariable Long id,HttpServletRequest request,HttpServletResponse response) {
72. userInfoManager.removeById(id);
73. return new ModelAndView(LIST_ACTION);
74. }
76. /** 批量删除 */
77. @RequestMapping (method=RequestMethod.DELETE)
78. public ModelAndView batchDelete( @RequestParam ( "items" ) Long[] items,HttpServletRequest request,HttpServletResponse response) {
80. for ( int i = 0 ; i < items.length; i++) {
82. userInfoManager.removeById(items[i]);
83. }
84. return new ModelAndView(LIST_ACTION);
85. }
87. }

/**
 * @RequestMapping("/userinfo") 具有层次关系，方法级的将在类一级@RequestMapping之一,
 * 如下面示例, 访问方法级别的@RequestMapping("/new"),则URL为 /userinfo/new
 */
@Controller
@RequestMapping("/userinfo")
public class UserInfoController extends BaseSpringController{
	//默认多列排序,example: username desc,createTime asc
	protected static final String DEFAULT_SORT_COLUMNS = null; 
	
	private UserInfoManager userInfoManager;
	
	private final String LIST_ACTION = "redirect:/userinfo";
	
	/** 
	 * 通过spring自动注入
	 **/
	public void setUserInfoManager(UserInfoManager manager) {
		this.userInfoManager = manager;
	}
	
	/** 列表 */
	@RequestMapping
	public ModelAndView index(HttpServletRequest request,HttpServletResponse response,UserInfo userInfo) {
		PageRequest<Map> pageRequest = newPageRequest(request,DEFAULT_SORT_COLUMNS);
		//pageRequest.getFilters(); //add custom filters
		
		Page page = this.userInfoManager.findByPageRequest(pageRequest);
		savePage(page,pageRequest,request);
		return new ModelAndView("/userinfo/list","userInfo",userInfo);
	}
	
	/** 进入新增 */
	@RequestMapping(value="/new")
	public ModelAndView _new(HttpServletRequest request,HttpServletResponse response,UserInfo userInfo) throws Exception {
		return new ModelAndView("/userinfo/new","userInfo",userInfo);
	}
	
	/** 显示 */
	@RequestMapping(value="/{id}")
	public ModelAndView show(@PathVariable Long id,HttpServletRequest request,HttpServletResponse response) throws Exception {
		UserInfo userInfo = (UserInfo)userInfoManager.getById(id);
		return new ModelAndView("/userinfo/show","userInfo",userInfo);
	}
	
	/** 编辑 */
	@RequestMapping(value="/{id}/edit")
	public ModelAndView edit(@PathVariable Long id,HttpServletRequest request,HttpServletResponse response) throws Exception {
		UserInfo userInfo = (UserInfo)userInfoManager.getById(id);
		return new ModelAndView("/userinfo/edit","userInfo",userInfo);
	}
	
	/** 保存新增 */
	@RequestMapping(method=RequestMethod.POST)
	public ModelAndView create(HttpServletRequest request,HttpServletResponse response,UserInfo userInfo) throws Exception {
		userInfoManager.save(userInfo);
		return new ModelAndView(LIST_ACTION);
	}
	
	/** 保存更新 */
	@RequestMapping(value="/{id}",method=RequestMethod.PUT)
	public ModelAndView update(@PathVariable Long id,HttpServletRequest request,HttpServletResponse response) throws Exception {
		UserInfo userInfo = (UserInfo)userInfoManager.getById(id);
		bind(request,userInfo);
		userInfoManager.update(userInfo);
		return new ModelAndView(LIST_ACTION);
	}
	
	/** 删除 */
	@RequestMapping(value="/{id}",method=RequestMethod.DELETE)
	public ModelAndView delete(@PathVariable Long id,HttpServletRequest request,HttpServletResponse response) {
		userInfoManager.removeById(id);
		return new ModelAndView(LIST_ACTION);
	}

	/** 批量删除 */
	@RequestMapping(method=RequestMethod.DELETE)
	public ModelAndView batchDelete(@RequestParam("items") Long[] items,HttpServletRequest request,HttpServletResponse response) {
		
		for(int i = 0; i < items.length; i++) {
			
			userInfoManager.removeById(items[i]);
		}
		return new ModelAndView(LIST_ACTION);
	}
	
}

上面是rapid-framework新版本生成器生成的代码,以后也将应用此规则,rest url中增删改查等基本方法与Controller的方法映射规则

Java代码

1. /userinfo => index()
2. /userinfo/new => _new()
3. /userinfo/{id} => show()
4. /userinfo/{id}/edit => edit()
5. /userinfo POST => create()
6. /userinfo/{id} PUT => update()
7. /userinfo/{id} DELETE => delete()
8. /userinfo DELETE => batchDelete()

	/userinfo 			=> index()
	/userinfo/new		=> _new()
	/userinfo/{id}		=> show()
	/userinfo/{id}/edit 		=> edit()
	/userinfo 	POST		=> create()
	/userinfo/{id} 	PUT	=> update()
	/userinfo/{id} 	DELETE	=> delete()
	/userinfo 	DELETE		=> batchDelete()

注(不使用 /userinfo/add => add() 方法是由于add这个方法会被maxthon浏览器当做广告链接过滤掉,因为包含ad字符)

4. jsp 编写

Html代码

1. < form:form action = "${ctx}/userinfo/${userInfo.userId}" method = "put" >
2. </ form:form >

<form:form action="${ctx}/userinfo/${userInfo.userId}" method="put">
</form:form>

生成的html内容如下, 生成一个hidden的_method=put,并于web.xml中的HiddenHttpMethodFilter配合使用，在服务端将post请求改为put请求

Java代码

1. <form id= "userInfo" action= "/springmvc_rest_demo/userinfo/2" method= "post" >
2. <input type="hidden" name= "_method" value= "put" />
3. </form>

<form id="userInfo" action="/springmvc_rest_demo/userinfo/2" method="post">
	<input type="hidden" name="_method" value="put"/>
</form>

另外一种方法是你可以使用ajax发送put,delete请求.

5. 静态资源的URL重写

如上我们描述，现因为将default servlet映射至/static/的子目录，现我们访问静态资源将会带一个/static/前缀.

如 /foo.gif, 现在访问该文件将是 /static/foo.gif.
那如何避免这个前缀呢，那就是应用URL rewrite,现我们使用 http://tuckey.org/urlrewrite/ , 重写规则如下

Xml代码

1. < urlrewrite >
2. <!-- 访问jsp及jspx将不rewrite url,其它.js,.css,.gif等将重写,如 /foo.gif => /static/foo.gif -->
3. < rule >
4. < condition operator = "notequal" next = "and" type = "request-uri" > .*.jsp </ condition >
5. < condition operator = "notequal" next = "and" type = "request-uri" > .*.jspx </ condition >
6. < from > ^(/.*\..*)$ </ from >
7. < to > /static$1 </ to >
8. </ rule >
9. </ urlrewrite >

1. /blog/ 1 HTTP GET => 得到id = 1 的blog
2. /blog/1 HTTP DELETE => 删除 id = 1 的blog
3. /blog/1 HTTP PUT => 更新id = 1 的blog
4. /blog HTTP POST => 新增BLOG

首先，我们带着如下三 个问题 查看本文。
1. 如何在java构造没有扩展名的RESTful url,如 /forms/1,而不是 /forms/1.do

2. 由于我们要构造没有扩展名的url本来是处理静态资源的容器映射的，现在被我们的spring占用了，冲突怎么解决?

3. 浏览器的form标签不支持提交delete,put请求，如何曲线解决?

spring mvc rest 实现

spring mvc的resturl是通过@RequestMapping 及@PathVariable annotation提供的,通过如@RequestMapping(value="/blog/{id}",method=RequestMethod.DELETE)即可处理/blog/1 的delete请求.

1. @RequestMapping (value= "/blog/{id}" ,method=RequestMethod.DELETE)
2. public ModelAndView delete( @PathVariable Long id,HttpServletRequest request,HttpServletResponse response) {
3. blogManager.removeById(id);
4. return new ModelAndView(LIST_ACTION);
5. }

@RequestMapping(value="/blog/{id}",method=RequestMethod.DELETE)
public ModelAndView delete(@PathVariable Long id,HttpServletRequest request,HttpServletResponse response) {
	blogManager.removeById(id);
	return new ModelAndView(LIST_ACTION);
}

@RequestMapping @PathVariable如果URL中带参数，则配合使用，如

1. @RequestMapping (value= "/blog/{blogId}/message/{msgId}" ,method=RequestMethod.DELETE)
2. public ModelAndView delete( @PathVariable ( "blogId" ) Long blogId, @PathVariable ( "msgId" ) Long msgId,HttpServletRequest request,HttpServletResponse response) {
3. }

@RequestMapping(value="/blog/{blogId}/message/{msgId}",method=RequestMethod.DELETE)
public ModelAndView delete(@PathVariable("blogId") Long blogId,@PathVariable("msgId") Long msgId,HttpServletRequest request,HttpServletResponse response) {
}

spring rest配置指南

1. spring mvc web.xml配置

1. <!-- 该servlet为tomcat,jetty等容器提供,将静态资源映射从/改为/static/目录，如原来访问 http://localhost/foo.css ,现在http://localhost/static/foo.css -->
2. < servlet-mapping >
3. < servlet-name > default </ servlet-name >
4. < url-pattern > /static/* </ url-pattern >
5. </ servlet-mapping >
6. < servlet >
7. < servlet-name > springmvc </ servlet-name >
8. < servlet-class > org.springframework.web.servlet.DispatcherServlet </ servlet-class >
9. < load-on-startup > 1 </ load-on-startup >
10. </ servlet >
12. <!-- URL重写filter,用于将访问静态资源http://localhost/foo.css 转为http://localhost/static/foo.css -->
13. < filter >
14. < filter-name > UrlRewriteFilter </ filter-name >
15. < filter-class > org.tuckey.web.filters.urlrewrite.UrlRewriteFilter </ filter-class >
16. < init-param >
17. < param-name > confReloadCheckInterval </ param-name >
18. < param-value > 60 </ param-value >
19. </ init-param >
20. < init-param >
21. < param-name > logLevel </ param-name >
22. < param-value > DEBUG </ param-value >
23. </ init-param >
24. </ filter >
25. < filter-mapping >
26. < filter-name > UrlRewriteFilter </ filter-name >
27. < url-pattern > /* </ url-pattern >
28. </ filter-mapping >
30. <!-- 覆盖default servlet的/, springmvc servlet将处理原来处理静态资源的映射 -->
31. < servlet-mapping >
32. < servlet-name > springmvc </ servlet-name >
33. < url-pattern > / </ url-pattern >
34. </ servlet-mapping >
36. <!-- 浏览器不支持put,delete等method,由该filter将/blog?_method=delete转换为标准的http delete方法 -->
37. < filter >
38. < filter-name > HiddenHttpMethodFilter </ filter-name >
39. < filter-class > org.springframework.web.filter.HiddenHttpMethodFilter </ filter-class >
40. </ filter >
42. < filter-mapping >
43. < filter-name > HiddenHttpMethodFilter </ filter-name >
44. < servlet-name > springmvc </ servlet-name >
45. </ filter-mapping >

	<!-- 该servlet为tomcat,jetty等容器提供,将静态资源映射从/改为/static/目录，如原来访问 http://localhost/foo.css ,现在http://localhost/static/foo.css -->
	<servlet-mapping>
		<servlet-name>default</servlet-name>
		<url-pattern>/static/*</url-pattern>
	</servlet-mapping>
	<servlet>
	    <servlet-name>springmvc</servlet-name>
	    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
	    <load-on-startup>1</load-on-startup>
	</servlet>
	
	<!-- URL重写filter,用于将访问静态资源http://localhost/foo.css 转为http://localhost/static/foo.css -->
	<filter>
		<filter-name>UrlRewriteFilter</filter-name>
		<filter-class>org.tuckey.web.filters.urlrewrite.UrlRewriteFilter</filter-class>
		<init-param>
		    	<param-name>confReloadCheckInterval</param-name>
		    	<param-value>60</param-value>
    		</init-param>
		<init-param>
            		<param-name>logLevel</param-name>
            		<param-value>DEBUG</param-value>
        	</init-param>    	
	</filter>
	<filter-mapping>
		<filter-name>UrlRewriteFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	
	<!-- 覆盖default servlet的/, springmvc servlet将处理原来处理静态资源的映射 -->
	<servlet-mapping>
	    <servlet-name>springmvc</servlet-name>
	    <url-pattern>/</url-pattern>
	</servlet-mapping>
	
	<!-- 浏览器不支持put,delete等method,由该filter将/blog?_method=delete转换为标准的http delete方法 -->
	<filter>
		<filter-name>HiddenHttpMethodFilter</filter-name>
		<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
	</filter>
	
	<filter-mapping>
		<filter-name>HiddenHttpMethodFilter</filter-name>
		<servlet-name>springmvc</servlet-name>
	</filter-mapping>

2. webapp/WEB-INF/springmvc-servlet.xml配置,使用如下两个class激活@RequestMapping annotation

1. <bean class = "org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
2. <bean class = "org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />

    <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"/>
    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>

完整配置

1. <beans default -autowire= "byName" >
3. <!-- 自动搜索@Controller 标注的类 -->
4. <context:component-scan base-package = "com.**.controller" />
6. <bean class = "org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
8. <bean class = "org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
10. <!-- Default ViewResolver -->
11. <bean id="viewResolver" class = "org.springframework.web.servlet.view.InternalResourceViewResolver" >
12. <property name="viewClass" value= "org.springframework.web.servlet.view.JstlView" />
13. <property name="prefix" value= "/pages" />
14. <property name="suffix" value= ".jsp" ></property>
15. </bean>
17. <bean id="messageSource" class = "org.springframework.context.support.ResourceBundleMessageSource" p:basename= "i18n/messages" />
19. <!-- Mapping exception to the handler view -->
20. <bean id="exceptionResolver" class = "org.springframework.web.servlet.handler.SimpleMappingExceptionResolver" >
21. <!-- to /commons/error.jsp -->
22. <property name="defaultErrorView" value= "/commons/error" />
23. <property name="exceptionMappings" >
24. <props>
25. </props>
26. </property>
27. </bean>
29. </beans>

<beans default-autowire="byName"   >

	<!-- 自动搜索@Controller标注的类 -->
	<context:component-scan base-package="com.**.controller"/>
	
    <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"/>

    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>

    <!-- Default ViewResolver -->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/pages"/>
        <property name="suffix" value=".jsp"></property>
    </bean>
    
    <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource" p:basename="i18n/messages"/>

    <!-- Mapping exception to the handler view -->
    <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
    	<!-- to /commons/error.jsp -->
        <property name="defaultErrorView" value="/commons/error"/>
        <property name="exceptionMappings">
            <props>
            </props>
        </property>
    </bean>
        
</beans>

3. Controller编写

1. /**
2. * @RequestMapping("/userinfo") 具有层次关系，方法级的将在类一级@RequestMapping之一,
3. * 如下面示例, 访问方法级别的@RequestMapping("/new"),则URL为 /userinfo/new
4. */
5. @Controller
6. @RequestMapping ( "/userinfo" )
7. public class UserInfoController extends BaseSpringController{
8. //默认多列排序,example: username desc,createTime asc
9. protected static final String DEFAULT_SORT_COLUMNS = null ;
11. private UserInfoManager userInfoManager;
13. private final String LIST_ACTION = "redirect:/userinfo" ;
15. /**
16. * 通过spring自动注入
17. **/
18. public void setUserInfoManager(UserInfoManager manager) {
19. this .userInfoManager = manager;
20. }
22. /** 列表 */
23. @RequestMapping
24. public ModelAndView index(HttpServletRequest request,HttpServletResponse response,UserInfo userInfo) {
25. PageRequest<Map> pageRequest = newPageRequest(request,DEFAULT_SORT_COLUMNS);
26. //pageRequest.getFilters(); //add custom filters
28. Page page = this .userInfoManager.findByPageRequest(pageRequest);
29. savePage(page,pageRequest,request);
30. return new ModelAndView( "/userinfo/list" , "userInfo" ,userInfo);
31. }
33. /** 进入新增 */
34. @RequestMapping (value= "/new" )
35. public ModelAndView _new(HttpServletRequest request,HttpServletResponse response,UserInfo userInfo) throws Exception {
36. return new ModelAndView( "/userinfo/new" , "userInfo" ,userInfo);
37. }
39. /** 显示 */
40. @RequestMapping (value= "/{id}" )
41. public ModelAndView show( @PathVariable Long id,HttpServletRequest request,HttpServletResponse response) throws Exception {
42. UserInfo userInfo = (UserInfo)userInfoManager.getById(id);
43. return new ModelAndView( "/userinfo/show" , "userInfo" ,userInfo);
44. }
46. /** 编辑 */
47. @RequestMapping (value= "/{id}/edit" )
48. public ModelAndView edit( @PathVariable Long id,HttpServletRequest request,HttpServletResponse response) throws Exception {
49. UserInfo userInfo = (UserInfo)userInfoManager.getById(id);
50. return new ModelAndView( "/userinfo/edit" , "userInfo" ,userInfo);
51. }
53. /** 保存新增 */
54. @RequestMapping (method=RequestMethod.POST)
55. public ModelAndView create(HttpServletRequest request,HttpServletResponse response,UserInfo userInfo) throws Exception {
56. userInfoManager.save(userInfo);
57. return new ModelAndView(LIST_ACTION);
58. }
60. /** 保存更新 */
61. @RequestMapping (value= "/{id}" ,method=RequestMethod.PUT)
62. public ModelAndView update( @PathVariable Long id,HttpServletRequest request,HttpServletResponse response) throws Exception {
63. UserInfo userInfo = (UserInfo)userInfoManager.getById(id);
64. bind(request,userInfo);
65. userInfoManager.update(userInfo);
66. return new ModelAndView(LIST_ACTION);
67. }
69. /** 删除 */
70. @RequestMapping (value= "/{id}" ,method=RequestMethod.DELETE)
71. public ModelAndView delete( @PathVariable Long id,HttpServletRequest request,HttpServletResponse response) {
72. userInfoManager.removeById(id);
73. return new ModelAndView(LIST_ACTION);
74. }
76. /** 批量删除 */
77. @RequestMapping (method=RequestMethod.DELETE)
78. public ModelAndView batchDelete( @RequestParam ( "items" ) Long[] items,HttpServletRequest request,HttpServletResponse response) {
80. for ( int i = 0 ; i < items.length; i++) {
82. userInfoManager.removeById(items[i]);
83. }
84. return new ModelAndView(LIST_ACTION);
85. }
87. }

/**
 * @RequestMapping("/userinfo") 具有层次关系，方法级的将在类一级@RequestMapping之一,
 * 如下面示例, 访问方法级别的@RequestMapping("/new"),则URL为 /userinfo/new
 */
@Controller
@RequestMapping("/userinfo")
public class UserInfoController extends BaseSpringController{
	//默认多列排序,example: username desc,createTime asc
	protected static final String DEFAULT_SORT_COLUMNS = null; 
	
	private UserInfoManager userInfoManager;
	
	private final String LIST_ACTION = "redirect:/userinfo";
	
	/** 
	 * 通过spring自动注入
	 **/
	public void setUserInfoManager(UserInfoManager manager) {
		this.userInfoManager = manager;
	}
	
	/** 列表 */
	@RequestMapping
	public ModelAndView index(HttpServletRequest request,HttpServletResponse response,UserInfo userInfo) {
		PageRequest<Map> pageRequest = newPageRequest(request,DEFAULT_SORT_COLUMNS);
		//pageRequest.getFilters(); //add custom filters
		
		Page page = this.userInfoManager.findByPageRequest(pageRequest);
		savePage(page,pageRequest,request);
		return new ModelAndView("/userinfo/list","userInfo",userInfo);
	}
	
	/** 进入新增 */
	@RequestMapping(value="/new")
	public ModelAndView _new(HttpServletRequest request,HttpServletResponse response,UserInfo userInfo) throws Exception {
		return new ModelAndView("/userinfo/new","userInfo",userInfo);
	}
	
	/** 显示 */
	@RequestMapping(value="/{id}")
	public ModelAndView show(@PathVariable Long id,HttpServletRequest request,HttpServletResponse response) throws Exception {
		UserInfo userInfo = (UserInfo)userInfoManager.getById(id);
		return new ModelAndView("/userinfo/show","userInfo",userInfo);
	}
	
	/** 编辑 */
	@RequestMapping(value="/{id}/edit")
	public ModelAndView edit(@PathVariable Long id,HttpServletRequest request,HttpServletResponse response) throws Exception {
		UserInfo userInfo = (UserInfo)userInfoManager.getById(id);
		return new ModelAndView("/userinfo/edit","userInfo",userInfo);
	}
	
	/** 保存新增 */
	@RequestMapping(method=RequestMethod.POST)
	public ModelAndView create(HttpServletRequest request,HttpServletResponse response,UserInfo userInfo) throws Exception {
		userInfoManager.save(userInfo);
		return new ModelAndView(LIST_ACTION);
	}
	
	/** 保存更新 */
	@RequestMapping(value="/{id}",method=RequestMethod.PUT)
	public ModelAndView update(@PathVariable Long id,HttpServletRequest request,HttpServletResponse response) throws Exception {
		UserInfo userInfo = (UserInfo)userInfoManager.getById(id);
		bind(request,userInfo);
		userInfoManager.update(userInfo);
		return new ModelAndView(LIST_ACTION);
	}
	
	/** 删除 */
	@RequestMapping(value="/{id}",method=RequestMethod.DELETE)
	public ModelAndView delete(@PathVariable Long id,HttpServletRequest request,HttpServletResponse response) {
		userInfoManager.removeById(id);
		return new ModelAndView(LIST_ACTION);
	}

	/** 批量删除 */
	@RequestMapping(method=RequestMethod.DELETE)
	public ModelAndView batchDelete(@RequestParam("items") Long[] items,HttpServletRequest request,HttpServletResponse response) {
		
		for(int i = 0; i < items.length; i++) {
			
			userInfoManager.removeById(items[i]);
		}
		return new ModelAndView(LIST_ACTION);
	}
	
}

上面是rapid-framework新版本生成器生成的代码,以后也将应用此规则,rest url中增删改查等基本方法与Controller的方法映射规则

Java代码

1. /userinfo => index()
2. /userinfo/new => _new()
3. /userinfo/{id} => show()
4. /userinfo/{id}/edit => edit()
5. /userinfo POST => create()
6. /userinfo/{id} PUT => update()
7. /userinfo/{id} DELETE => delete()
8. /userinfo DELETE => batchDelete()

	/userinfo 			=> index()
	/userinfo/new		=> _new()
	/userinfo/{id}		=> show()
	/userinfo/{id}/edit 		=> edit()
	/userinfo 	POST		=> create()
	/userinfo/{id} 	PUT	=> update()
	/userinfo/{id} 	DELETE	=> delete()
	/userinfo 	DELETE		=> batchDelete()

注(不使用 /userinfo/add => add() 方法是由于add这个方法会被maxthon浏览器当做广告链接过滤掉,因为包含ad字符)

4. jsp 编写

Html代码

1. < form:form action = "${ctx}/userinfo/${userInfo.userId}" method = "put" >
2. </ form:form >

<form:form action="${ctx}/userinfo/${userInfo.userId}" method="put">
</form:form>

生成的html内容如下, 生成一个hidden的_method=put,并于web.xml中的HiddenHttpMethodFilter配合使用，在服务端将post请求改为put请求

Java代码

1. <form id= "userInfo" action= "/springmvc_rest_demo/userinfo/2" method= "post" >
2. <input type="hidden" name= "_method" value= "put" />
3. </form>

<form id="userInfo" action="/springmvc_rest_demo/userinfo/2" method="post">
	<input type="hidden" name="_method" value="put"/>
</form>

另外一种方法是你可以使用ajax发送put,delete请求.

5. 静态资源的URL重写

如上我们描述，现因为将default servlet映射至/static/的子目录，现我们访问静态资源将会带一个/static/前缀.

如 /foo.gif, 现在访问该文件将是 /static/foo.gif.
那如何避免这个前缀呢，那就是应用URL rewrite,现我们使用 http://tuckey.org/urlrewrite/ , 重写规则如下

Xml代码

1. < urlrewrite >
2. <!-- 访问jsp及jspx将不rewrite url,其它.js,.css,.gif等将重写,如 /foo.gif => /static/foo.gif -->
3. < rule >
4. < condition operator = "notequal" next = "and" type = "request-uri" > .*.jsp </ condition >
5. < condition operator = "notequal" next = "and" type = "request-uri" > .*.jspx </ condition >
6. < from > ^(/.*\..*)$ </ from >
7. < to > /static$1 </ to >
8. </ rule >
9. </ urlrewrite >