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我正在努力弄清楚如何讓數據導入處理程序的splitBy結構起作用。我期待它將輸入列分成多值字段。這裏有一個測試用例來重現問題：將數據庫列拆分爲多值Solr字段
import java.io.File;
import java.io.IOException;
import java.sql.SQLException;
import static org.junit.Assert.*;
import javax.sql.DataSource;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.io.FileUtils;
import org.apache.solr.client.solrj.SolrQuery;
import org.apache.solr.client.solrj.SolrServer;
import org.apache.solr.client.solrj.embedded.EmbeddedSolrServer;
import org.apache.solr.client.solrj.response.QueryResponse;
import org.apache.solr.common.SolrDocument;
import org.apache.solr.core.CoreContainer;
import org.hsqldb.jdbc.JDBCDataSource;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class TestSplitBy {
SolrServer server;
File configPath = new File(FileUtils.getTempDirectory(), Long.toString(System.nanoTime()));
String solrconfig_xml = "<config><luceneMatchVersion>LUCENE_41</luceneMatchVersion><requestHandler name=\"search\" class=\"solr.SearchHandler\" default=\"true\"><lst name=\"defaults\"><str name=\"fl\">*</str><str name=\"df\">id</str></lst></requestHandler><requestHandler name=\"/dataimport\" class=\"org.apache.solr.handler.dataimport.DataImportHandler\"><lst name=\"defaults\"><str name=\"config\">data-config.xml</str></lst></requestHandler></config>";
String data_config_xml = "<dataConfig>" +
"<dataSource url=\"jdbc:hsqldb:mem:testdb\" user=\"SA\" driver=\"org.hsqldb.jdbc.JDBCDriver\" />" +
"<document>" +
"<entity name=\"item\" transformer=\"RegexTransformer\" query=\"SELECT * FROM test\">" +
"<field column=\"type\" name=\"type\" splitBy=\",\" />" +
"</entity>" +
"</document>" +
"</dataConfig>";
String schema_xml = "<schema version=\"1.3\" name=\"test\">" +
"<types>" +
"<fieldType name=\"string\" class=\"solr.StrField\" sortMissingLast=\"true\" omitNorms=\"true\" />" +
"</types>" +
"<fields>" +
"<field stored=\"true\" name=\"id\" type=\"string\" />" +
"<field stored=\"true\" name=\"type\" type=\"string\" multiValued=\"true\"/>" +
"</fields>" +
"<uniqueKey>id</uniqueKey>" +
"</schema>";
DataSource getDataSource() {
JDBCDataSource ds = new JDBCDataSource();
ds.setUser("SA");
ds.setUrl("mem:testdb");
return ds;
}
void populateDb(DataSource ds) {
QueryRunner runner = new QueryRunner(ds);
try {
runner.update("DROP TABLE test IF EXISTS");
runner.update("CREATE TABLE test(id INTEGER, type VARCHAR(256));");
runner.update("INSERT INTO test VALUES 1, 'foo,bar,baz'");
} catch (SQLException e) {
System.err.println(e);
}
}
void writeSolrConfig() throws IOException {
File corePath = new File(configPath, "collection1");
corePath.mkdir();
File confPath = new File(corePath, "conf");
confPath.mkdir();
FileUtils.write(new File(confPath, "data-config.xml"), data_config_xml);
FileUtils.write(new File(confPath, "schema.xml"), schema_xml);
FileUtils.write(new File(confPath, "solrconfig.xml"), solrconfig_xml);
}
void startSolr() {
System.setProperty("solr.solr.home", configPath.getAbsolutePath());
CoreContainer.Initializer initializer = new CoreContainer.Initializer();
CoreContainer coreContainer = initializer.initialize();
server = new EmbeddedSolrServer(coreContainer, "collection1");
}
@Before
public void setup() throws IOException {
populateDb(getDataSource());
writeSolrConfig();
startSolr();
}
@After
public void tearDown() {
server.shutdown();
FileUtils.deleteQuietly(configPath);
}
@Test
public void testSplitBy() throws Exception {
SolrQuery query = new SolrQuery();
query.set("qt", "/dataimport");
query.setParam("command", "full-import");
QueryResponse response = server.query(query);
Thread.sleep(500);
response = server.query(new SolrQuery("*:*"));
for (SolrDocument doc: response.getResults()) {
assertNotNull(doc.getFieldValues("type"));
assertEquals(3, doc.getFieldValues("type").size());
}
}
}
而且POM測試用例：
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>solr</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>Solr Sanity</name>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.solr</groupId>
<artifactId>solr</artifactId>
<version>4.1.0</version>
<type>war</type>
</dependency>
<dependency>
<groupId>org.apache.solr</groupId>
<artifactId>solr-dataimporthandler</artifactId>
<version>4.1.0</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>org.apache.solr</groupId>
<artifactId>solr-solrj</artifactId>
<version>4.1.0</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>commons-dbutils</groupId>
<artifactId>commons-dbutils</artifactId>
<version>1.5</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>org.hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<version>2.2.9</version>
<type>jar</type>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
</dependencies>
</project>
如何讓這些類型拆分成正確多個值任何瞭解？
可能重複？ http://stackoverflow.com/questions/8971476/splitting-multivalued-field-while-importing-data-into-solr –
是的 - 我已經檢查過一個（和其他所有重複的答案建議）。似乎解決方案的唯一區別就是將'sourceColName'屬性添加到問題字段中（我已經嘗試過）。只是似乎有什麼明顯的我失蹤了。是否有某個「splitBy」功能的工作示例？ – condit
你在數據庫中有什麼columm？類型或**類型**？根據你的定義，它是類型。這是否與你實際擁有的相匹配？ –