Solr 数据导入和带有 xml 转义的 SQL答案

【问题标题】：Solr dataimport and SQL with xml escapeSolr 数据导入和带有 xml 转义的 SQL
【发布时间】：2014-12-03 19:44:19
【问题描述】：

我在数据导入配置文件的实体标签中尝试了以下 SQL：

<entity name="Page" dataSource="a1" query="SELECT &amp;apos;26484-&amp;apos;&amp;amp;`book`.id&amp;amp;&amp;apos;-&amp;apos;&amp;amp;`book`.page&amp;amp;&amp;apos;-&amp;apos;&amp;amp;`book`.part AS PageID, `book`.id AS pid, `book`.nass AS Content, `book`.part AS Part, `book`.page AS PageNum FROM `book` ORDER BY `book`.id, `book`.page">

Sql 查询包含应在 xml 中转义的字符，' and &。但是，我在日志中收到以下错误：

 DocBuilder     Exception while processing: Page document : SolrInputDocument(fields: []):org.apache.solr.handler.dataimport.DataImportHandlerException: Unable to execute query: SELECT '26484-'&`book`.id&'-'&`book`.page&'-'&`book`.part AS PageID, `book`.id AS pid, `book`.nass AS Content, `book`.part AS Part, `book`.page AS PageNum FROM `book` ORDER BY `book`.id, `book`.page Processing Document # 1

和

DataImporter    Full Import failed:java.lang.RuntimeException: java.lang.RuntimeException: org.apache.solr.handler.dataimport.DataImportHandlerException: Unable to execute query: SELECT '26484-'&`book`.id&'-'&`book`.page&'-'&`book`.part AS PageID, `book`.id AS pid, `book`.nass AS Content, `book`.part AS Part, `book`.page AS PageNum FROM `book` ORDER BY `book`.id, `book`.page Processing Document # 1

我使用ucanaccess jdbc 驱动。

当我尝试从 SQL 查询中删除连接时，删除转义字符时，我没有收到此错误，但我收到了有关重复唯一键的 solrWriter 警告。我理解这个警告。但是，我怎样才能编写使用上面显示的 Sql 查询？

【问题讨论】：

单引号不用转义，直接在查询中输入'即可。
每个转义字符都需要&。所以你需要用&amp;&apos;替换&amp;apos;。

标签： ucanaccess sql xml solr data-import ucanaccess

【解决方案1】：

不需要对单引号进行转义，可以将'直接放入查询中。
每个转义字符都需要&。所以你需要用&amp;&apos;替换&amp;apos;。

破坏您的查询的事实应该是 (2)。

<entity name="Page" dataSource="a1" query="SELECT &amp;'26484-&amp;'&amp;&amp;`book`.id&amp;&amp;&amp;'-&amp;'&amp;&amp;`book`.page&amp;&amp;&amp;'-&amp;'&amp;&amp;`book`.part AS PageID, `book`.id AS pid, `book`.nass AS Content, `book`.part AS Part, `book`.page AS PageNum FROM `book` ORDER BY `book`.id, `book`.page">

【讨论】：