SpringMVC整合Mongodb開發 架構搭建

標籤：des   blog   http   ar   io   os   使用   sp   for   

系統內容:

作業系統:  windows xp

數 據 庫:  mongodb2.0.6

驅 動 包: Spring3.1.2 + mongodb2.7.3 + spring-data-mongodb1.0.1

說明: 對於xp系統使用者,在執行mongod.exe安裝mongodb時 出現,無法定位程式輸入焦點 InterlockedCompareExchange64 於動態連結程式庫KERNEL32.dll上,這是因為最新的開發分支已經不再支援xp.也就是說你的mongodb安裝包不支援xp系統.V2.0.6是最新也是最後一個新版本支援xp.所以筆者使用資料庫為2.0.6

項目結構:

配置說明:
Web.xml檔案配置spring相關與springmvc相關.

<?xml version="1.0" encoding="UTF-8"?><web-app version="2.5"     xmlns="http://java.sun.com/xml/ns/javaee"     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee     http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">          <!-- spring配置 -->    <context-param>        <param-name>contextConfigLocation</param-name>        <param-value>/WEB-INF/context/spring-context.xml</param-value>    </context-param>    <listener>        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>    </listener>    <!-- spring MVC配置 -->    <servlet>          <servlet-name>springmvc</servlet-name>          <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>         <init-param>            <param-name>contextConfigLocation</param-name>                           <param-value>/WEB-INF/context/servlet-context.xml</param-value>  <!--指定XML檔案位置-->        </init-param>         <load-on-startup>4</load-on-startup>              </servlet>      <servlet-mapping>          <servlet-name>springmvc</servlet-name>          <url-pattern>/</url-pattern>      </servlet-mapping>      <welcome-file-list>    <welcome-file>index.jsp</welcome-file>  </welcome-file-list></web-app>

 Springmvc的設定檔servlet-context.xml

<?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:util="http://www.springframework.org/schema/util"    xmlns:p="http://www.springframework.org/schema/p"    xmlns:aop="http://www.springframework.org/schema/aop"    xmlns:tx="http://www.springframework.org/schema/tx"    xmlns:mvc="http://www.springframework.org/schema/mvc"    xmlns:context="http://www.springframework.org/schema/context"    xsi:schemaLocation="    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd    http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd    http://www.springframework.org/schema/context     http://www.springframework.org/schema/context/spring-context-3.1.xsd">    <!-- DispatcherServlet Context: defines this servlet‘s request-processing infrastructure -->        <!-- Enables the Spring MVC @Controller programming model -->    <mvc:annotation-driven />    <context:component-scan base-package="com.pudp" />            <!-- 配置基於Session的處理,將提交上來的locale參數進行處理 -->      <bean id="localeResolver" class="org.springframework.web.servlet.i18n.SessionLocaleResolver">        <!-- 該屬性可以不用配置 -->        <property name="defaultLocale" value="ja"></property>    </bean>          <!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/views directory -->    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <property name="prefix" value="/WEB-INF/views/" />        <property name="suffix" value=".jsp" />    </bean>        </beans>

spring設定檔Spring-context.xml

<?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:util="http://www.springframework.org/schema/util"    xmlns:p="http://www.springframework.org/schema/p"    xmlns:aop="http://www.springframework.org/schema/aop"    xmlns:tx="http://www.springframework.org/schema/tx"    xmlns:context="http://www.springframework.org/schema/context"    xsi:schemaLocation="    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd    http://www.springframework.org/schema/context     http://www.springframework.org/schema/context/spring-context-3.1.xsd">          <context:annotation-config />   <context:component-scan base-package="com.pudp" />          <!-- 匯入mongodb的設定檔 -->   <import resource="mongodb-context.xml"/>       </beans>

mongodb的設定檔mongodb-context.xml

<?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:context="http://www.springframework.org/schema/context"      xmlns:mongo="http://www.springframework.org/schema/data/mongo"      xsi:schemaLocation="http://www.springframework.org/schema/context             http://www.springframework.org/schema/context/spring-context-3.0.xsd             http://www.springframework.org/schema/data/mongo             http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd             http://www.springframework.org/schema/beans             http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">                <!-- 載入mongodb的屬性設定檔 -->    <context:property-placeholder location="classpath:mongodb.properties" />        <!-- 定義mongo對象，對應的是mongodb官方jar包中的Mongo，replica-set設定叢集副本的ip地址和連接埠 -->    <mongo:mongo id="mongo" replica-set="${mongo.hostport}">        <!-- 一些串連屬性的設定 -->            <mongo:options             connections-per-host="${mongo.connectionsPerHost}"             threads-allowed-to-block-for-connection-multiplier="${mongo.threadsAllowedToBlockForConnectionMultiplier}"             connect-timeout="${mongo.connectTimeout}"             max-wait-time="${mongo.maxWaitTime}"             auto-connect-retry="${mongo.autoConnectRetry}"             socket-keep-alive="${mongo.socketKeepAlive}"             socket-timeout="${mongo.socketTimeout}"             slave-ok="${mongo.slaveOk}"             write-number="1"             write-timeout="0"             write-fsync="true"/>            </mongo:mongo>    <mongo:db-factory dbname="database" mongo-ref="mongo" />        <bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">        <constructor-arg ref="mongo" />        <constructor-arg name="databaseName" value="db_mongo" />    </bean></beans>

mongodb的屬性設定檔mongodb.properties

mongo.hostport=127.0.0.1:27017mongo.connectionsPerHost=8mongo.threadsAllowedToBlockForConnectionMultiplier=4#連線逾時時間mongo.connectTimeout=1000#等待時間mongo.maxWaitTime=1500mongo.autoConnectRetry=truemongo.socketKeepAlive=true#Socket逾時時間mongo.socketTimeout=1500mongo.slaveOk=true

編寫Controller、Service、Dao相關.這裡我們測試以下Spring-data-mong中對Collection的實現機制. 我們建立不同的實體類型Member、Article

然後編寫對應的Service、Dao實現.這裡我們側重點持久層實現

持久層的操作實現

ArticleDao

package com.pudp.dao;import org.springframework.stereotype.Repository;import com.pudp.base.MongoGenDao;import com.pudp.model.Article;/** * description: * * @author <a href=‘mailto:[email protected]‘> Cn.蘇若年 (En.dennisit)</a> Copy Right since 2013-10-16  * * com.pudp.dao.ArticleDao.java * */@Repositorypublic class ArticleDao extends MongoGenDao<Article>{        /**     * 實現鉤子方法,返回反射的類型     * @author <a href=‘mailto:[email protected]‘>Cn.蘇若年(En.dennisit)</a> Copy Right since 2013-10-13      *                     * @return     */    @Override    protected Class<Article> getEntityClass() {        return Article.class;    }}

MemberDao

package com.pudp.dao;import org.springframework.stereotype.Repository;import com.pudp.base.MongoGenDao;import com.pudp.model.Member;/** * description: * * @author <a href=‘mailto:[email protected]‘> Cn.蘇若年 (En.dennisit)</a> Copy Right since 2013-10-13  * * com.pudp.dao.MemberDao.java * */@Repositorypublic class MemberDao extends MongoGenDao<Member>{    /**     * 實現鉤子方法,返回反射的類型     * @author <a href=‘mailto:[email protected]‘>Cn.蘇若年(En.dennisit)</a> Copy Right since 2013-10-13      *                     * @return     */    @Override    protected Class<Member> getEntityClass() {        return Member.class;    }}

MongoGenDao中我們實現了對庫中添加資料

package com.pudp.base;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.data.mongodb.core.MongoTemplate;/** * description: * * @author <a href=‘mailto:[email protected]‘> Cn.蘇若年 (En.dennisit)</a> Copy Right since 2013-10-13  * * com.pudp.base.MongoGenDao.java * */public abstract class MongoGenDao<T> {    @Autowired    protected MongoTemplate mongoTemplate;        /**     * 儲存一個對象     *     * @author <a href=‘mailto:[email protected]‘>Cn.蘇若年(En.dennisit)</a> Copy Right since 2013-10-13 下午03:37:28     *                     * @param t     * @return     */    public void save(T t){        this.mongoTemplate.save(t);    }            /**     * 為屬性自動注入bean服務     *     * @author <a href=‘mailto:[email protected]‘>Cn.pudp(En.dennisit)</a> Copy Right since 2013-10-13 下午03:21:23     *                     * @param mongoTemplate     */    public void setMongoTemplate(MongoTemplate mongoTemplate) {        this.mongoTemplate = mongoTemplate;    }    }

這裡需要說明的是MongoTemplate對庫的管理。

MongoTemplate對庫Collection的管理

我們使用MongoTemplate操作持久層.這裡如果我們沒有指定CollectionName的話,會依實體類型的類名作為庫中的集合名,當我們執行資料入庫操作之後,從資料庫中查看到如下資訊.

當然,如果我們想自己定義資料庫的Collection名的化,可以在持久層Dao中指定. 關於Mongodb的可以Mongodb相關的內容. 後續將介紹SpringMVC+ Mongodb 的CRUD + 分頁實現.

SpringMVC整合Mongodb開發 架構搭建