Cause: java.lang.NullPointerException: target is null for method xxx

Error querying database. Cause: java.lang.NullPointerException: target is null for method name### Cause: java.lang.NullPointerException: target is null for method nameat org.apache.ibatis.exceptions.E

晓梦初醒p

11697人浏览 · 2020-11-19 14:12:09

晓梦初醒p · 2020-11-19 14:12:09 发布

 Error querying database.  Cause: java.lang.NullPointerException: target is null for method name
### Cause: java.lang.NullPointerException: target is null for method name
        at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)
        at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)
        at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)
        at sun.reflect.GeneratedMethodAccessor241.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:358)
        ... 68 more
Caused by: java.lang.NullPointerException: target is null for method name
        at org.apache.ibatis.ognl.OgnlRuntime.callMethod(OgnlRuntime.java:862)
        at org.apache.ibatis.ognl.ASTMethod.getValueBody(ASTMethod.java:73)
        at org.apache.ibatis.ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
        at org.apache.ibatis.ognl.SimpleNode.getValue(SimpleNode.java:210)
        at org.apache.ibatis.ognl.ASTChain.getValueBody(ASTChain.java:109)

直接说答案,就是你的sql里面有个方法没有,或者是某个对象在点某个方法的时候为空.