create or replace function open_sql_cursor (v_sql varchar2) return   sys_refcursor is
 c   sys_refcursor;
 begin
    open c for v_sql;
     return c;
end;

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JDBC调用代码

ResultSet rs1=null;
		CallableStatement call=null;
		String type="";
		String newSql ="{? = call asset.open_sql_cursor(?)}";
		try {
			conn = this.getDataSource().getConnection();
			call=conn.prepareCall(newSql);
			call.registerOutParameter(1, oracle.jdbc.OracleTypes.CURSOR);
			call.setString(2, sql);
			call.execute();
//			rs = ((OracleCallableStatement)call).getCursor(1);
			rs=(ResultSet)call.getObject(1);			
			AuditInfo auditInfo;
			while(rs.next()){
				String errmsg = rs.getString("errmsg");
				Date loginTime = rs.getDate("loginTime");
				String dbUser = rs.getString("dbUser");
				String application = rs.getString("application");
                         。。。。。。。。。。。

?? 1函数是在asset账号下面 ，故有??? String newSql ="{? = call asset.open_sql_cursor(?)}";

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? 2传参，从左往右，依次为1 ，2.。。。。。。

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? 3执行时使用?? CallableStatement call=null;

prepareCall(newSql);

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?4取值有两种办法

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rs = ((OracleCallableStatement)call).getCursor(1);
			rs=(ResultSet)call.getObject(1);