mybatis的insert语句错误-Error getting generated key or setting result to parameter object.

    今天在使用mybatis操作达梦6数据库insert时候遇到了一个问题，同样语句其他数据库并没有遇到的这个问题，错误信息如下：

Caused by: org.apache.ibatis.executor.ExecutorException: Error getting generated key or setting result to parameter object. Cause: java.lang.NullPointerException
	at org.apache.ibatis.executor.keygen.Jdbc3KeyGenerator.processBatch(Jdbc3KeyGenerator.java:66)
	at org.apache.ibatis.executor.keygen.Jdbc3KeyGenerator.processAfter(Jdbc3KeyGenerator.java:45)
	at org.apache.ibatis.executor.statement.PreparedStatementHandler.update(PreparedStatementHandler.java:48)
	at org.apache.ibatis.executor.statement.RoutingStatementHandler.update(RoutingStatementHandler.java:69)
	at org.apache.ibatis.executor.ReuseExecutor.doUpdate(ReuseExecutor.java:50)
	at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:105)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:62)
	at com.sun.proxy.$Proxy50.update(Unknown Source)
	at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:152)
	at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:141)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:358)
	... 63 more
Caused by: java.lang.NullPointerException
	at org.apache.ibatis.executor.keygen.Jdbc3KeyGenerator.processBatch(Jdbc3KeyGenerator.java:55)
	... 81 more

mybatis配置如下：

    <insert id="addRecord" parameterType="java.util.Map">
		insert into
		${table_name}(${col_name})
		values ${col_value}
	</insert>

我的mybatis使用的是3.2.8版本，这张表呢是没有设置主键的，错误说是因为返回的key空造成的，其实挺纳闷的，mybatis的insert语句useGeneratedKeys属性默认是false，不应该返回主键的啊，那么我只有手动添加上去useGeneratedKeys="false" ，结果就可以了，如下：

    <insert id="addRecord" parameterType="java.util.Map" useGeneratedKeys="false" >
		insert into
		${table_name}(${col_name})
		values ${col_value}
	</insert>

如果要有需要返回插入数据的主键，如下配置mapper接口中返回值int接收即可：

	<insert id="addCheckResReturnID" useGeneratedKeys="true" keyProperty="exeId" parameterType="java.util.Map">
		INSERT INTO ${table_name} 
	    <trim prefix="(" suffix=")" suffixOverrides="," >
	      <if test="exeId != null" >
	        EXE_ID,
	      </if>
	      <if test="checkId != null" >
	        CHECK_ID,
	      </if>
	    </trim>
		<trim prefix="values (" suffix=")" suffixOverrides="," >
	      <if test="exeId != null" >
	        #{exeId,jdbcType=BIGINT},
	      </if>
	      <if test="checkId != null" >
	        #{checkId,jdbcType=BIGINT},
	      </if>
      </trim>	
	</insert>

后续有更高版本的mybatis应该也可以了吧