solr 数据源导入需要注意的问题 dataimport.xml

蓝晶灵

　　配置data-conf.xml配置文件时注意大小写。
　　


<document name="faq">
<entity name="t_faq" dataSource="jdbc" pk="id"
transformer="ClobTransformer" query="select * from im_ry_faq t">
<field column="id" name="id" />
<field column="question" name="question" />
<field column="ANSWER" name="answer" clob="true" />
<field column="key_word" name="keywords" />
</entity>
</document>
　　ANSWER如果改成小写，那么ClobTransformer是不会被执行解析的。
　　看solr如下代码
　　


public Object transformRow(Map<String, Object> aRow, Context context) {
for (Map<String, String> map : context.getAllEntityFields()) {
if (!TRUE.equals(map.get(CLOB))) continue;
String column = map.get(DataImporter.COLUMN);
String srcCol = map.get(RegexTransformer.SRC_COL_NAME);
if (srcCol == null)
srcCol = column;
Object o = aRow.get(srcCol);
if (o instanceof List) {
List<Clob> inputs = (List<Clob>) o;
List<String> results = new ArrayList<String>();
for (Object input : inputs) {
if (input instanceof Clob) {
Clob clob = (Clob) input;
results.add(readFromClob(clob));
}
}
aRow.put(column, results);
} else {
if (o instanceof Clob) {
Clob clob = (Clob) o;
aRow.put(column, readFromClob(clob));
}
}
}
return aRow;
}
 Object o = aRow.get(srcCol);如果填写小写是获取不到对象。那么就不会被ClobTransformer即使你配置了也是无效的