mongodb-orm简介
Mongodb ORM是基于java的ORM
框架，简化了SDK的使用，使代码变得更清晰、简单。 与Ibatis类似，将查询、执行语句封装在xml中，与代码隔离。简称MQL。 项目中使用加入
mongodb orm的支持包1. 添加jar包或maven支持<dependency>
<groupId>com.
mongodborm</groupId>
<artifactId>
mongodb-orm</artifactId>
<version>0.0.1-RELEASE</version>
</dependency>2. 初始化
mongodb templet
spring中初始化<bean id="mongoTemplet" class="com.
mongodb.client.MongoClientTemplet">
<property name="factory">
<bean class="com.
mongodb.client.MongoORMFactoryBean">
<property name="dataSource">
<bean class="com.
mongodb.client.MongoDataSource">
<property name="nodeList" value="127.0.0.1:27017" />
<property name="dbName" value="your db name" />
<property name="userName" value="user name" />
<property name="passWord" value="password" /> <!-- 可使用默认值 --> <property name="connectionsPerHost" value="" />
<property name="threadsAllowedToBlock" value="" />
<property name="connectionTimeOut" value="" />
<property name="maxRetryTime" value="" />
<property name="socketTimeOut" value="" />
</bean>
</property>
<property name="configLocations">
<list>
<value>classpath:mql/mongo-mql.xml</value>
</list>
</property>
</bean>
</property>
</bean>
代码初始化 try {
Resource resource = new ClassPathResource("mongo-mql.xml");
MongoORMFactoryBean factory = new MongoORMFactoryBean();
factory.setConfigLocations(new Resource[]{resource});
factory.init();
MongoClientTemplet templet = new MongoClientTemplet();
templet.setFactory(factory);
templet.init();
} catch(Exception e) {
e.printStackTrace();
}编写MQLMapping<mapping id="model" class="test.
mongodborm.Model">
<property column="_id" name="id" />
<property column="name" name="name" />
<property column="time" name="time" value="0" />
<property column="status" name="status" />
</mapping>
<mapping id="extendModel" class="test.
mongodborm.Model" extends="model">
<property column="newProperty" name="newProperty" />
</mapping>
select<select id="queryModelList" collection="test_sample">
<query class="java.lang.String">
<property column="name" name="${value}" />
</query>
<field mapping="model" />
<order>
<property column="time" value="desc" />
</order>
</select> update/findAndModify<update id="updateModel" collection="test_sample">
<query class="test.
mongodborm.Model$Child">
<property column="name" name="name" ignoreNull="true" />
<property column="time" operate="gte" value="0" type="number" />
<property column="status" operate="in">
<list type="number">0,1</list>
</property>
</query>
<action class="java.util.Map">
<property column="name" name="name" operate="set" />
<property column="status" operate="set" />
</action>
</update>有嵌套的查询<select id="queryModelList3" collection="test_sample">
<query class="java.lang.String">
<property column="_id" value="${value}" />
<property column="time" value="0" type="number" />
</query>
<field class="java.util.Map">
<property column="name" name="name" />
<property column="parent" name="parent">
<value class="test.
mongodborm.Model$Parent">
<property column="name" name="name" />
<property column="child" name="child">
<value class="test.
mongodborm.Model$Child">
<property column="name" name="name" />
<property column="time" name="time" value="0" />
</value>
</property>
<property column="data" name="data">
<value class="java.util.Map">
<property column="title" name="title" />
<property column="content" name="content" />
</value>
</property>
</value>
</property>
<property column="data" name="data">
<value class="java.util.Map">
<property column="title" name="title" />
<property column="content" name="content" />
</value>
</property>
</field>
<order class="java.util.Map">
<property column="time" name="time" value="desc" />
</order>
</select>Templet用法Model model = mongoTemplet.findOne("queryModelList", "yuxiangping");
List<Model> list = mongoTemplet.findOne("queryModelList", "");
Model model = new Model();
model.setTime(1L);
Map<String, String> action = new HashMap<String, String>();
action.put("name", "yuxiangping-update");
int update = mongoT emplet.update("updateModel", model, action);
更多的使用方法参见 sample.xml
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