使用 Spring Batch 構建企業級批處理應用: 第 1 部分

JdbcPagingItemReader

</beans:bean>

<bean id="pagingItemReader"
	class="org.springframework.batch.item.database.JdbcPagingItemReader"
 

	scope="step">
	<property name="dataSource" ref="dataSource" />
	<property name="queryProvider">
	  <bean
		class="org.springframework.batch.item.database.support.SqlPagingQueryProviderFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="selectClause"
 
 value="select id, user_login, user_pass, age" />
		<property name="fromClause" value="from users" />
		<property name="whereClause" value="where id &gt;= :fromId and id &lt;= :toId" />
		<property name="sortKey" value="id" />
	  </bean>
	</property>
	<!-- Inject via the ExecutionContext in rangePartitioner -->
	<property name="parameterValues">
	  <map>
		<entry key="fromId" value="#{stepExecutionContext[fromId]}" />
		<entry key="toId" value="#{stepExecutionContext[toId]}" />
	  </map>
	</property>
	<property name="pageSize" value="10" />
	<property name="rowMapper">
		<bean class="com.mkyong.UserRowMapper" />
	</property>
  </bean>

監控job

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