java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for com.x java.lang.IllegalArgumentExcep...

java.lang.IllegalArgumentException

\u6709\u53ef\u80fd\u539f\u56e0\u6709\u4e00\u4e0b\u51e0\u6761\uff08\u8fd9\u4e2a\u9519\u8bef\u5f88\u597d\u627e \u81ea\u5df1\u4e00\u6b65\u4e00\u6b65\u67e5\u8be2\u5c31ok\uff09
1\u3001mapper.xml\u4e2d\u6ca1\u6709\u52a0\u5165namespace
2\u3001mapper.xml\u4e2d\u7684\u65b9\u6cd5\u548c\u63a5\u53e3mapper\u7684\u65b9\u6cd5\u4e0d\u5bf9\u5e94
3\u3001mapper.xml\u6ca1\u6709\u52a0\u5165\u5230mybatis-config.xml\u4e2d(\u5373\u603b\u7684\u914d\u7f6e\u6587\u4ef6)\uff0c\u4f8b\u5916\uff1a\u914d\u7f6e\u4e86mapper\u6587\u4ef6\u7684\u5305\u8def\u5f84\u7684\u9664\u5916
4\u3001mapper.xml\u6587\u4ef6\u540d\u548c\u6240\u5199\u7684mapper\u540d\u79f0\u4e0d\u76f8\u540c\u3002

\u4f60\u7684javamapper\u6587\u4ef6\u548cmapper.xml\u622a\u56fe\u51fa\u6765\u770b\u770b

com.xianlikeji.service.LoginService.loginIn
是不是配置错误。 应该是com.xianlikeji.service.serviceImpl.loginIn

com.xianlikeji.action.LoginAction.execute(LoginAction.java:53定位到这句话查看出错信息

应该是你的UsersMapper.xml少一句 <typeAlias alias="******" type="com.xianlikeji.service.LoginService.loginIn" />

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