Liferay chat-portlet 让所有用户均显示在线

参考文章：http://www.voidcn.com/article/p-sfigrudb-wg.html

这篇文章写的很好，但是还是有一些缺漏。

跟他的思路一样，但是做法不同。

先说一下思路：就是把所有的用户都查出来，但是不对用户做任何的限制，也就是取消onlin=true的限制，这样就可以显示都在线了。

第一步：找到default.xml，

<sql id="com.liferay.chat.service.persistence.StatusFinder.findByModifiedDate">
		<![CDATA[
			SELECT
				GOSHARE_Chat_Status.awake AS awake, User_.firstName AS firstName, Group_.groupId as groupId, User_.lastName AS lastName, User_.middleName AS middleName, User_.portraitId AS portraitId, User_.screenName AS screenName, User_.userId AS userId, User_.uuid_ AS userUuid,
				
			FROM
				GOSHARE_Chat_Status
			INNER JOIN
				User_ ON
					(User_.userId = GOSHARE_Chat_Status.userId)
			INNER JOIN
				Group_ ON
					(
						(Group_.classPK = User_.userId) AND
						(Group_.companyId = User_.companyId)
					)
			WHERE
				(Group_.classNameId = ?) AND
				(User_.companyId = ?) AND
				(User_.userId != ?) AND
				(GOSHARE_Chat_Status.modifiedDate > ?) AND
				(GOSHARE_Chat_Status.online_ = [$TRUE$])
			ORDER BY
				GOSHARE_Chat_Status.awake ASC,
				User_.firstName ASC,
				User_.middleName ASC,
				User_.lastName ASC
		]]>
	</sql>

把这段增加GOSHARE_Chat_Status.online_ AS online和删除AND
                (GOSHARE_Chat_Status.modifiedDate > ?) AND
                (GOSHARE_Chat_Status.online_ = [$TRUE$])

改变之后的代码：

	<sql id="com.liferay.chat.service.persistence.StatusFinder.findByModifiedDate">
		<![CDATA[
			SELECT
				GOSHARE_Chat_Status.awake AS awake, User_.firstName AS firstName, Group_.groupId as groupId, User_.lastName AS lastName, User_.middleName AS middleName, User_.portraitId AS portraitId, User_.screenName AS screenName, User_.userId AS userId, User_.uuid_ AS userUuid,
				GOSHARE_Chat_Status.online_ AS online 
			FROM
				GOSHARE_Chat_Status
			INNER JOIN
				User_ ON
					(User_.userId = GOSHARE_Chat_Status.userId)
			INNER JOIN
				Group_ ON
					(
						(Group_.classPK = User_.userId) AND
						(Group_.companyId = User_.companyId)
					)
			WHERE
				(Group_.classNameId = ?) AND
				(User_.companyId = ?) AND
				(User_.userId != ?) 
			ORDER BY
				GOSHARE_Chat_Status.awake ASC,
				User_.firstName ASC,
				User_.middleName ASC,
				User_.lastName ASC
		]]>
	</sql>

第二步：找到这个类StatusFinderImpl.java，在findByModifiedDate这个方法里注释掉qPos.add(modifiedDate);

	qPos.add(ClassNameLocalServiceUtil.getClassNameId(User.class));
			qPos.add(companyId);
			qPos.add(userId);
			//qPos.add(modifiedDate);

第三步：还是在那个类里，找到addScalars方法

增加sqlQuery.addScalar("online", Type.BOOLEAN);

sqlQuery.addScalar("awake", Type.BOOLEAN);
		sqlQuery.addScalar("firstName", Type.STRING);
		sqlQuery.addScalar("groupId", Type.LONG);
		sqlQuery.addScalar("lastName", Type.STRING);
		//sqlQuery.addScalar("male", Type.BOOLEAN);
		sqlQuery.addScalar("middleName", Type.STRING);
		sqlQuery.addScalar("portraitId", Type.LONG);
		sqlQuery.addScalar("screenName", Type.STRING);
		sqlQuery.addScalar("userId", Type.LONG);
		sqlQuery.addScalar("userUuid", Type.STRING);
		sqlQuery.addScalar("online", Type.BOOLEAN);

重启tomcat，ok