Solr数据导入和带有xml转义的SQL
[英]Solr dataimport and SQL with xml escape
问题描述
I tried the following SQL in entity tag of dataimport config file: 
我在dataimport配置文件的实体标签中尝试了以下SQL：
<entity name="Page" dataSource="a1" query="SELECT &apos;26484-&apos;&amp;`book`.id&amp;&apos;-&apos;&amp;`book`.page&amp;&apos;-&apos;&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">
The Sql query contains characters should be escaped in xml, ' and & . Sql查询包含的字符应以xml， ' and &进行转义。 However, I recive the following error in the log: 但是，我在日志中看到以下错误：
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
and 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
I use ucanaccess jdbc driver. 我使用ucanaccess jdbc驱动程序。
When I tried to remove concatination from the SQL query so, removing the escaped characters, I have not got this error, but I have got solrWriter warning about duplicate Unique key. 当我尝试从SQL查询中删除隐藏条件，从而删除转义字符时，我没有收到此错误，但是我收到了关于重复的唯一键的solrWriter警告。 and I understand this warning. 而且我明白这个警告。 However, How could I able to write use the Sql query shown above? 但是，如何编写上面显示的Sql查询呢？
1 个解决方案
解决方案1
2 已采纳 2014-10-09 07:42:46
There is no need to escape single quotes, you can put
'directly into the query.无需转义单引号，您可以将'直接放入查询中。A
&is required for every escaped character.每个转义字符都必须使用&。 So you will need to replace&apos;因此，您将需要替换&apos;with&'与&'.。
The fact that corrupts your query should be (2). 破坏查询的事实应该是（2）。
<entity name="Page" dataSource="a1" 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">
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