解决——》MyBatisSystemException: nested exception is org.apache.ibatis.binding.BindingException

快来打我* 2024-02-19 13:57 4阅读 0赞

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[https://blog.csdn.net/weixin\_43453386/article/details/84587865][https_blog.csdn.net_weixin_43453386_article_details_84587865]

#### 解决——》org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.binding.BindingException: Parameter 'list' not found. Available parameters are \[item, param1\] ####

*   *  1、操作
     *  2、现象（错误信息）
     *  3、原因
     *   *  1）以下为解决错误之前的代码：
         *  2）Mybatis中foreach的属性
     *  4、解决
     *   *  1) 方案一：Mapper.java不调整，Mapper.xml调整
         *  2) 方案二：Mapper.java调整，Mapper.xml不调整

tion: nested exception is org.apache.ibatis.binding.BindingException: Parameter ‘list’ not found. Available parameters are \[item, param1\] )

### 1、操作 ###

批量更新

### 2、现象（错误信息） ###

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.binding.BindingException: Parameter 'list' not found. Available parameters are [item, param1]
    
    	at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:77)
    	at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:446)
    	at com.sun.proxy.$Proxy113.update(Unknown Source)
    	at org.mybatis.spring.SqlSessionTemplate.update(SqlSessionTemplate.java:294)
    	at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:62)
    	at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59)
    	at com.sun.proxy.$Proxy193.batchUpdate(Unknown Source)
    	at com.ejudata.platform.service.imp.CommunityFenceDataServiceImp.check(CommunityFenceDataServiceImp.java:106)
    	at com.ejudata.platform.service.imp.CommunityFenceDataServiceImp.communityFenceDataCheck(CommunityFenceDataServiceImp.java:65)
    	at com.ejudata.platform.test.TestCommunityFenceCheck.communityFence(TestCommunityFenceCheck.java:50)
    	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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    	at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
    	at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
    	at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
    	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252)
    	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)
    	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    	at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    	at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
    	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)
    	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
    	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
    	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
    	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
    	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
    Caused by: org.apache.ibatis.binding.BindingException: Parameter 'list' not found. Available parameters are [item, param1]
    	at org.apache.ibatis.binding.MapperMethod$ParamMap.get(MapperMethod.java:202)
    	at org.apache.ibatis.scripting.xmltags.DynamicContext$ContextAccessor.getProperty(DynamicContext.java:115)
    	at org.apache.ibatis.ognl.OgnlRuntime.getProperty(OgnlRuntime.java:2666)
    	at org.apache.ibatis.ognl.ASTProperty.getValueBody(ASTProperty.java:114)
    	at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212)
    	at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:258)
    	at org.apache.ibatis.ognl.Ognl.getValue(Ognl.java:470)
    	at org.apache.ibatis.ognl.Ognl.getValue(Ognl.java:434)
    	at org.apache.ibatis.scripting.xmltags.OgnlCache.getValue(OgnlCache.java:44)
    	at org.apache.ibatis.scripting.xmltags.ExpressionEvaluator.evaluateIterable(ExpressionEvaluator.java:43)
    	at org.apache.ibatis.scripting.xmltags.ForEachSqlNode.apply(ForEachSqlNode.java:55)
    	at org.apache.ibatis.scripting.xmltags.MixedSqlNode.apply(MixedSqlNode.java:33)
    	at org.apache.ibatis.scripting.xmltags.DynamicSqlSource.getBoundSql(DynamicSqlSource.java:41)
    	at org.apache.ibatis.mapping.MappedStatement.getBoundSql(MappedStatement.java:292)
    	at org.apache.ibatis.executor.statement.BaseStatementHandler.<init>(BaseStatementHandler.java:64)
    	at org.apache.ibatis.executor.statement.PreparedStatementHandler.<init>(PreparedStatementHandler.java:40)
    	at org.apache.ibatis.executor.statement.RoutingStatementHandler.<init>(RoutingStatementHandler.java:46)
    	at org.apache.ibatis.session.Configuration.newStatementHandler(Configuration.java:545)
    	at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:48)
    	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.$Proxy215.update(Unknown Source)
    	at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:198)
    	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    	at java.lang.reflect.Method.invoke(Method.java:498)
    	at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433)
    	... 36 more

### 3、原因 ###

> Mapper.java 和 Mapper.xml的传递的参数没有对应上  
>   
>   
> `Mapper.java`中的传递参数为`item`  
> `Mapper.xml`中使用的参数为`list`

#### 1）以下为解决错误之前的代码： ####

*  Mapper.java

int batchUpdate(@Param("item") List<T> list);

*  Mapper.xml

<update id="batchUpdate">
        <foreach collection="list" index="index" item="item" open="" separator=";" close="">
            update community_fence_data set id = #{item.id}
            <if test="null != item.key1"> ,key1 = #{item.key1}</if>
            <if test="null != item.key2"> ,key2 = #{item.key2}</if>
            <if test="null != item.result"> ,result = #{item.result}</if>
            <if test="null != item.gaodeFence"> ,gaode_fence = #{item.gaodeFence}</if>
            where id = #{item.id}
    	</foreach>
      </update>

#### 2）Mybatis中foreach的属性 ####

<table> 
 <thead> 
  <tr> 
   <th align="left">属性</th> 
   <th align="left">描述</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td align="left">item</td> 
   <td align="left">循环体中的具体对象。支持属性的点路径访问，如item.age,item.info.details。 具体说明：在list和数组中是其中的对象，在map中是value。 该参数为必选。</td> 
  </tr> 
  <tr> 
   <td align="left">collection</td> 
   <td align="left">要做foreach的对象，作为入参时，List&lt;?&gt;对象默认用list代替作为键，数组对象有array代替作为键，Map对象用map代替作为键。 当然在作为入参时可以使用@Param(“keyName”)来设置键，设置keyName后，list,array,map将会失效。 除了入参这种情况外，还有一种作为参数对象的某个字段的时候。举个例子： 如果User有属性List ids。入参是User对象，那么这个collection = “ids” 如果User有属性Ids ids;其中Ids是个对象，Ids有个属性List id;入参是User对象，那么collection = “<a href="http://ids.id" rel="nofollow">ids.id</a>” 上面只是举例，具体collection等于什么，就看你想对那个元素做循环。 该参数为必选。</td> 
  </tr> 
  <tr> 
   <td align="left">separator</td> 
   <td align="left">元素之间的分隔符，例如在in()的时候，separator=","会自动在元素中间用“,“隔开，避免手动输入逗号导致sql错误，如in(1,2,)这样。该参数可选。</td> 
  </tr> 
  <tr> 
   <td align="left">open</td> 
   <td align="left">foreach代码的开始符号，一般是(和close=")"合用。常用在in(),values()时。该参数可选。</td> 
  </tr> 
  <tr> 
   <td align="left">close</td> 
   <td align="left">foreach代码的关闭符号，一般是)和open="("合用。常用在in(),values()时。该参数可选。</td> 
  </tr> 
  <tr> 
   <td align="left">index</td> 
   <td align="left">在list和数组中,index是元素的序号，在map中，index是元素的key，该参数可选。</td> 
  </tr> 
 </tbody> 
</table>

### 4、解决 ###

> Mapper.java 和 Mapper.xml的传递的参数对应上

#### 1) 方案一：Mapper.java不调整，Mapper.xml调整 ####

*  Mapper.java

int batchUpdate(@Param("item") List<T> list);

*  Mapper.xml

<update id="batchUpdate">
        <foreach collection="item" index="index" item="item" open="" separator=";" close="">
            update community_fence_data set id = #{item.id}
            <if test="null != item.key1"> ,key1 = #{item.key1}</if>
            <if test="null != item.key2"> ,key2 = #{item.key2}</if>
            <if test="null != item.result"> ,result = #{item.result}</if>
            <if test="null != item.gaodeFence"> ,gaode_fence = #{item.gaodeFence}</if>
            where id = #{item.id}
    	</foreach>
      </update>

#### 2) 方案二：Mapper.java调整，Mapper.xml不调整 ####

*  Mapper.java

int batchUpdate(@Param("list") List<T> list);

*  Mapper.xml

[https_blog.csdn.net_weixin_43453386_article_details_84587865]: https://blog.csdn.net/weixin_43453386/article/details/84587865

解决——》MyBatisSystemException: nested exception is org.apache.ibatis.binding.BindingException

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