solr 数据源导入需要注意的问题 dataimport.xml

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