项目场景：
在开发中，需要通过批量插入，生成主键id，然后进行数据关联操作
问题描述
Caused by: org.apache.ibatis.executor.ExecutorException: Error getting generated key or setting result to parameter object. Cause: org.apache.ibatis.binding.BindingException: Parameter 'id' not found. Available parameters are [forlonList, param1]
at org.apache.ibatis.executor.keygen.Jdbc3KeyGenerator.processBatch(Jdbc3KeyGenerator.java:71)
at org.apache.ibatis.executor.keygen.Jdbc3KeyGenerator.processAfter(Jdbc3KeyGenerator.java:45)
at org.apache.ibatis.executor.statement.PreparedStatementHandler.update(PreparedStatementHandler.java:50)
at org.apache.ibatis.executor.statement.RoutingStatementHandler.update(RoutingStatementHandler.java:74)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:63)
at com.sun.proxy.$Proxy371.update(Unknown Source)
at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:50)
at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117)
at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:63)
at com.sun.proxy.$Proxy370.update(Unknown Source)
at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:198)
at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:185)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433)
... 68 more
Caused by: org.apache.ibatis.binding.BindingException: Parameter 'id' not found. Available parameters are [forlonList, param1]
at org.apache.ibatis.binding.MapperMethod$ParamMap.get(MapperMethod.java:186)
at org.apache.ibatis.reflection.wrapper.MapWrapper.getSetterType(MapWrapper.java:85)
at org.apache.ibatis.reflection.MetaObject.getSetterType(MetaObject.java:97)
at org.apache.ibatis.executor.keygen.Jdbc3KeyGenerator.getTypeHandlers(Jdbc3KeyGenerator.java:108)
at org.apache.ibatis.executor.keygen.Jdbc3KeyGenerator.processBatch(Jdbc3KeyGenerator.java:65)
... 93 more
批量插入后，生成主键失败，说是没有匹配到这个参数
ForlanDao.java
int batchInsert(@Param("forlonList") List<Forlan> forlonList);
ForlanMapper.xml
<insert id="batchInsert" useGeneratedKeys="true" keyProperty="id">
INSERT INTO
Forlan(name,remark)
VALUES
<foreach collection="forlonList" item="item" index="index" separator=",">
(#{item.name},#{item.remark})
</foreach>
</insert>
原因分析：
这里使用的是1.3.1版本，目前发现是版本问题，其它版本是正常的
解决方案：
本质就是，需要把foreach标签中的collection属性值改为list
-
修改dao和mapper里面的forlonList为list
ForlanDao.java int batchInsert(@Param("list") List<Forlan> forlonList);
ForlanMapper.xml
<insert id="batchInsert" useGeneratedKeys="true" keyProperty="id">
INSERT INTO
Forlan(name,remark)
VALUES
<foreach collection="list" item="item" index="index" separator=",">
(#{item.name},#{item.remark})
</foreach>
</insert>
-
去掉@Param注解，修改collection=“list”
ForlanDao.java int batchInsert(List<Forlan> forlonList);
ForlanMapper.xml <insert id="batchInsert" useGeneratedKeys="true" keyProperty="id">
INSERT INTO
Forlan(name,remark)
VALUES
<foreach collection="list" item="item" index="index" separator=",">
(#{item.name},#{item.remark})
</foreach>
</insert>
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