@Controller 和 @RequestMapping 进行spring mvc 映射

1、applicationContext-service.xml

<bean id="appPageService" class="com.xiaonei.wap.fuxi.xoa.client.AppPageServiceDelegate" />

2、rest-servlet.xml

<!-- Default View Resolver -->
	<bean id="beanNameViewResolver" class="org.springframework.web.servlet.view.BeanNameViewResolver" >
		<property name="order" value="0"/>
	</bean>
	<bean id="internalResourceViewResolver"
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="order" value="1"/>
		<property name="prefix" value="/WEB-INF/jsp/" />
		<property name="suffix" value=".jsp" />
	</bean>


<!-- url mapping by bean name -->
	<bean id="handlerMapping"
		class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
		<property name="order" value="0" />
	</bean>

3、controller-servlet.xml

<bean class="com.renren.wap.fuxi.controllers.AppPageController">
		<property name="appPageService" ref="appPageService" />
		<property name="appPageCategoryService" ref="appPageCategoryService" />
		<property name="userPlayService" ref="userPlayService" />
		<property name="userFacade" ref="userFacade" />
	</bean>

4、AppPageController.java

/**
 * $Id$
 * Copyright 2009-2010 Oak Pacific Interactive. All rights reserved.
 */
package com.renren.wap.fuxi.controllers;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.util.CollectionUtils;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

import com.renren.wap.fuxi.constants.FuxiConstants;
import com.xiaonei.platform.core.model.User;
import com.xiaonei.platform.core.model.WUserCache;
import com.xiaonei.wap.framework.user.facade.IUserFacade;
import com.xiaonei.wap.fuxi.model.AppPage;
import com.xiaonei.wap.fuxi.model.AppPageResult;
import com.xiaonei.wap.fuxi.model.AppPageSnapshot;
import com.xiaonei.wap.fuxi.model.AppPageSupport;
import com.xiaonei.wap.fuxi.model.UserPlayFlowResult;
import com.xiaonei.wap.fuxi.service.IAppPageCategoryService;
import com.xiaonei.wap.fuxi.service.IAppPageService;
import com.xiaonei.wap.fuxi.service.IUserPlayService;

/**
 * 
 * @author <a href="mailto:[email protected]">王侨</a>
 * @createTime 2011-7-15下午05:26:11
 */

@Controller
@RequestMapping("/page")
public class AppPageController {

    /**
     * Logger for this class
     */
    private static final Log logger = LogFactory.getLog(AppPageController.class);

    private IAppPageService appPageService;

    private IAppPageCategoryService appPageCategoryService;

    private IUserPlayService userPlayService;

    private IUserFacade userFacade;

    @RequestMapping(value = "/{pageId}", method = RequestMethod.GET)
    public ModelAndView page(
            HttpServletRequest request,
            User host,
            @PathVariable("pageId") int pageId,
            @RequestParam(value = "os", required = false, defaultValue = FuxiConstants.OS_VALUE) int os) {
        ModelAndView mav = new ModelAndView("pages/wap/apppage");

        AppPage appPage = appPageService.getPage(pageId);

        if (appPage == null) {
            return null;
        }

        String downloadUrl = null;
        List<AppPageSupport> appPageSupportList = appPage.getAppPageSupports();
        if (!CollectionUtils.isEmpty(appPageSupportList)) {
            for (AppPageSupport appPageSupport : appPageSupportList) {
                if (os == appPageSupport.getOs()) {
                    downloadUrl = appPageSupport.getWapDownloadUrl();
                    break;
                }
            }
        }
        if (downloadUrl != null) {
            mav.addObject("downloadUrl", downloadUrl);
        }

        List<AppPageSnapshot> snapshot = null;
        if (appPage.getWapSnapshots() != null) {
            snapshot = appPage.getWapSnapshots();
        }
        mav.addObject("snapshot", snapshot);

        List<Integer> friendIdList = userPlayService.getFriendPlayByPageId(host.getId(), pageId,
                FuxiConstants.EXPIRED_DAYS);
        if (!CollectionUtils.isEmpty(friendIdList)) {
            String friends = getFriendsNameAndCount(friendIdList);
            appPage.setFriends(friends);
        }
        mav.addObject("appPage", appPage);

        return mav;
    }

    @RequestMapping(value = "/hot/list", method = RequestMethod.GET)
    public ModelAndView hotPages(
            HttpServletRequest request,
            User host,
            @RequestParam(value = "os", required = false, defaultValue = FuxiConstants.OS_VALUE) int os) {
        ModelAndView mav = new ModelAndView("pages/wap/apppageshot");

        AppPageResult topList = appPageService.getTopPageList(os, 0, FuxiConstants.HOT_SIZE_VALUE);
        if (topList != null) {
            mav.addObject("topList", topList);
        }

        AppPageResult gameList = getCategory(os, FuxiConstants.APP_PAGE_CATEGORY_GAME);
        if (gameList != null) {
            buildAppPageList(host.getId(), gameList);
            mav.addObject("gameList", gameList);
        }

        AppPageResult appList = getCategory(os, FuxiConstants.APP_PAGE_CATEGORY_APP);
        if (appList != null) {
            buildAppPageList(host.getId(), appList);
            mav.addObject("appList", appList);
        }

        AppPageResult webList = getCategory(os, FuxiConstants.APP_PAGE_CATEGORY_WEB);
        if (webList != null) {
            buildAppPageList(host.getId(), webList);
            mav.addObject("webList", webList);
        }

        mav.addObject("os", os);

        return mav;
    }

    @RequestMapping("/search")
    public ModelAndView search(
            HttpServletRequest request,
            User host,
            @RequestParam(value = "keyword", required = false, defaultValue = "") String keyword,
            @RequestParam(value = "kw", required = false, defaultValue = "") String kw,
            @RequestParam(value = "os", required = false, defaultValue = FuxiConstants.OS_VALUE) int os,
            @RequestParam(value = "page", required = false, defaultValue = FuxiConstants.PAGE_VALUE) int page,
            @RequestParam(value = "pageSize", required = false, defaultValue = FuxiConstants.PAGE_SIZE_VALUE) int pageSize) {
        ModelAndView mav = new ModelAndView("pages/wap/apppagessearch");

        mav.addObject("keyword", keyword);

        AppPageResult appPageResult = appPageService.searchPageList(keyword, os, page, pageSize);
        if (appPageResult != null) {
            buildAppPageList(host.getId(), appPageResult);
            mav.addObject(FuxiConstants.LIST, appPageResult);
            mav.addObject(FuxiConstants.COUNT, appPageResult.getCount());
        }

        mav.addObject(FuxiConstants.PAGE_VALUE, page);
        mav.addObject(FuxiConstants.PAGE_SIZE_VALUE, pageSize);
        mav.addObject("os", os);
        return mav;
    }

    @RequestMapping(value = "/category/{categoryId}", method = RequestMethod.GET)
    public ModelAndView category(
            HttpServletRequest request,
            User host,
            @PathVariable("categoryId") int categoryId,
            @RequestParam(value = "os", required = false, defaultValue = FuxiConstants.OS_VALUE) int os,
            @RequestParam(value = "page", required = false, defaultValue = FuxiConstants.PAGE_VALUE) int page,
            @RequestParam(value = "pageSize", required = false, defaultValue = FuxiConstants.PAGE_SIZE_VALUE) int pageSize) {
        ModelAndView mav = new ModelAndView("pages/wap/apppagescategory");

        AppPageResult appPageResult = appPageCategoryService.getCategoryPageList(categoryId, os,
                FuxiConstants.APP_PAGE_SORT_TYPE_DISPLAY, page, pageSize);

        if (appPageResult == null) {
            if (logger.isDebugEnabled()) {
                logger.debug("AppPageResult is null");
            }
            return null;
        }

        buildAppPageList(host.getId(), appPageResult);
        mav.addObject(FuxiConstants.LIST, appPageResult);
        mav.addObject("categoryId", categoryId);
        mav.addObject("os", os);

        mav.addObject(FuxiConstants.PAGE_VALUE, page);
        mav.addObject(FuxiConstants.COUNT, appPageResult.getCount());
        mav.addObject(FuxiConstants.PAGE_SIZE_VALUE, pageSize);

        return mav;
    }

    /**
     * @param os
     * @param categoryId
     * @return
     */
    private AppPageResult getCategory(int os, int categoryId) {
        AppPageResult categoryList = appPageCategoryService.getCategoryPageList(categoryId, os,
                FuxiConstants.APP_PAGE_SORT_TYPE_TIME, 0, 2);
        if (categoryList == null) {
            return null;
        }
        return categoryList;
    }

    /**
     * 根据一组friendIds拼接friends展示描述
     * 
     * @param friendIds
     * @param count
     * @return
     */
    private String getFriendsNameAndCount(List<Integer> friendIdList) {
        StringBuilder friendNames = new StringBuilder();
        if (!CollectionUtils.isEmpty(friendIdList)) {
            int friendsSize = friendIdList.size();
            if (friendIdList.size() > 2) {
                friendIdList = friendIdList.subList(0, 2);
            }
            List<WUserCache> users = userFacade.getUsersCacheList(friendIdList);

            if (users != null) {
                for (Iterator<WUserCache> iterator = users.iterator(); iterator.hasNext();) {
                    WUserCache wUserCache = iterator.next();
                    friendNames.append(wUserCache.getName());
                    if (iterator.hasNext()) {
                        friendNames.append(",");
                    }
                }
                friendNames.append("等").append(friendsSize).append("个好友在玩");
            }
        }
        if (friendNames.length() == 0) {
            friendNames.append("暂时没有好友在玩");
        }
        return friendNames.toString();
    }

    /**
     * 根据userId, appPageResult包装page展示列表
     * 
     * @param userId
     * @param appPageResult
     */
    private void buildAppPageList(int userId, AppPageResult appPageResult) {
        if (appPageResult != null && appPageResult.getCount() > 0) {
            List<Integer> pageIdList = new ArrayList<Integer>();
            for (AppPage appPage : appPageResult.getAppPageList()) {
                pageIdList.add(appPage.getId());
            }

            List<UserPlayFlowResult> friendIdList = null;
            if (!CollectionUtils.isEmpty(pageIdList)) {
                friendIdList = userPlayService.getFriendPlayByPageIds(userId, pageIdList,
                        FuxiConstants.EXPIRED_DAYS);
            }

            if (!CollectionUtils.isEmpty(friendIdList)) {
                for (AppPage appPage : appPageResult.getAppPageList()) {
                    int pageId = appPage.getId();
                    for (Iterator<UserPlayFlowResult> iterator = friendIdList.iterator(); iterator
                            .hasNext();) {
                        UserPlayFlowResult userPlayFlowResult = (UserPlayFlowResult) iterator
                                .next();
                        if (pageId == userPlayFlowResult.getPageId()
                                && userPlayFlowResult.getFriends() != null) {
                            int friendCount = userPlayFlowResult.getFriends().size();
                            if (friendCount > 0) {
                                String friends = getFriendsNameAndCount(userPlayFlowResult
                                        .getFriends());
                                appPage.setFriends(friends);
                            }
                        }
                    }
                }
            }
        }
    }

    public void setAppPageService(IAppPageService appPageService) {
        this.appPageService = appPageService;
    }

    public void setAppPageCategoryService(IAppPageCategoryService appPageCategoryService) {
        this.appPageCategoryService = appPageCategoryService;
    }

    public void setUserPlayService(IUserPlayService userPlayService) {
        this.userPlayService = userPlayService;
    }

    public void setUserFacade(IUserFacade userFacade) {
        this.userFacade = userFacade;
    }

}

采用spring mvc 注解方式来进行映射。