尝试将List<String>
传递给H2用户定义的函数时,我收到以下错误:
[{call MY_USER_DEFINED_FUNCTION(?)}]; SQL state
[90004]; error code [90004]; Hexadecimal string contains non-hex character:
"[ABCD, EFGH]"; SQL statement:
call MY_USER_DEFINED_FUNCTION(?) [90004-192]; nested
exception is org.h2.jdbc.JdbcSQLException: Hexadecimal string contains non-
hex character: "[1234, 5678]"; SQL statement:
call MY_USER_DEFINED_FUNCTION(?) [90004-192]
正如日志中的代码段所示,该列表包含两个字符串:&#34; ABCD&#34;和&#34; EFGH&#34;。我试图将这些值传递给SQL语句的IN
子句。
用户定义的函数如下所示:
CREATE ALIAS MY_USER_DEFINED_FUNCTION AS
'
java.sql.ResultSet getTableContent(java.sql.Connection con, List<String> idList) throws Exception {
final PreparedStatement statement = con.prepareStatement("SELECT * FROM MY_TABLE WHERE id IN (?)");
String ids[] = new String[idList.size()];
idList.toArray(ids);
statement.setArray(1, con.createArrayOf("text", ids));
java.sql.ResultSet rs = statement.executeQuery();
return rs;
}'
正在从DAO方法调用用户定义的函数。我使用Spring来管理数据库连接,这里是调用方法的一小部分:
public List<MyObject> getMyObjects(final List<String> idList) {
Map<String, Object> params = new HashMap<>();
params.put("idList", idList);
// Execute stored procedure
Map<String, Object> output = super.execute(params);
// Collect stored procedure results into list
List<MyObject> myObjectList = (List<MyObject>) output.get("myResultSet");
return myObjectList;
}
我还尝试传递数组,并在预准备语句中使用setObject
- 抛出相同的错误。我能够在传入单个字符串时返回用户定义函数,并在预准备语句上调用setString
,但似乎无法将多个字符串传递给{{ SQL语句的1}}子句。
关于为什么抛出这个的任何想法?
答案 0 :(得分:0)
解决:
已将输入参数类型声明为Types.VARCHAR
,更改为Types.JAVA_OBJECT
并解决了十六进制字符问题:
StoredProcedure.declareParameter(new SqlParameter("idList", Types.JAVA_OBJECT));