数据表
create table test ( TASKID NUMBER(10) not null, CONFIG CLOB )
controller
@ResponseBody
@RequestMapping("/getTest")
public List getTest(HttpServletRequest request, HttpServletResponse response){
return this.Service.getTest();
}sql.xml
1、没有做任何处理情况,程序报错如下
Caused by: org.codehaus.jackson.map.JsonMappingException: No serializer found for class oracle.sql.LobDBAccessImpl and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationConfig.Feature.FAIL_ON_EMPTY_BEANS) ) (through reference chain: java.util.ArrayList[0]->java.util.HashMap["CONFIG"]->oracle.sql.CLOB["dbaccess"])
2、在sql.xml中,对CLOB字段Config进行to_char()处理,开始能够解决问题,后面出现数据库报错的情况
sql.xml
数据库报错

3、去掉@ResponseBody,将返回的结果打印出来,发现config是一个对象
controller
//@ResponseBody
@RequestMapping("/getTest")
public List getTest(HttpServletRequest request, HttpServletResponse response){
System.out.println(this.Service.getTest());
return this.Service.getTest();
}debug
[{CONFIG=oracle.sql.CLOB@16e2b70,TASKID=38}]4、在Mybatis中采用resultMap处理,程序正常,debug时config为具体内容。
sql.xml