异步化的时候返回类型是void，mybaitis是无法构造出对象的，这个问题怎么解决
WanXinTao opened this issue · 0 comments
Caused by: org.apache.ibatis.executor.ExecutorException: No constructor found in void matching [java.lang.Integer, java.lang.String, java.lang.Integer] at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.createByConstructorSignature(DefaultResultSetHandler.java:668) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.createResultObject(DefaultResultSetHandler.java:621) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.createResultObject(DefaultResultSetHandler.java:594) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getRowValue(DefaultResultSetHandler.java:396) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValuesForSimpleResultMap(DefaultResultSetHandler.java:355) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValues(DefaultResultSetHandler.java:330) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSet(DefaultResultSetHandler.java:303) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSets(DefaultResultSetHandler.java:196) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:64) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.executor.ReuseExecutor.doQuery(ReuseExecutor.java:60) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:326) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:136) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:77) ~[mybatis-3.4.6.jar:3.4.6] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_191] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_191] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_191] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_191] at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433) ~[mybatis-spring-1.3.1.jar:1.3.1] at com.sun.proxy.$Proxy85.selectOne(Unknown Source) ~[?:?] at org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:166) ~[mybatis-spring-1.3.1.jar:1.3.1] at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:83) ~[mybatis-3.4.6.jar:3.4.6] at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59) ~[mybatis-3.4.6.jar:3.4.6] at com.sun.proxy.$Proxy89.findUserById2(Unknown Source) ~[?:?] at com.maoyan.service.impl.UserServiceImpl.asynGetUser(UserServiceImpl.java:24) ~[classes/:?] at com.maoyan.service.movie.walle.biz.com.maoyan.biz.impl.UserBizImpl.asynGetUserInfo(UserBizImpl.java:25) ~[classes/:?] at com.maoyan.service.movie.walle.provider.controller.MyController.asynUserInfo(MyController.java:28) ~[classes/:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_191] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_191] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_191] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_191] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) ~[spring-web-4.3.13.RELEASE.jar:4.3.13.RELEASE] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) ~[spring-web-4.3.13.RELEASE.jar:4.3.13.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97) ~[spring-webmvc-4.3.13.RELEASE.jar:4.3.13.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) ~[spring-webmvc-4.3.13.RELEASE.jar:4.3.13.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) ~[spring-webmvc-4.3.13.RELEASE.jar:4.3.13.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.3.13.RELEASE.jar:4.3.13.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) ~[spring-webmvc-4.3.13.RELEASE.jar:4.3.13.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) ~[spring-webmvc-4.3.13.RELEASE.jar:4.3.13.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) ~[spring-webmvc-4.3.13.RELEASE.jar:4.3.13.RELEASE] ... 51 more
我的mapper接口，我采用的是纯注解开发mapper，没有使用配置文件
`@Mapper
public interface IUserDAO {
@select("select * from user where id=#{id}")
User findUserById(Integer id);
@Select("select * from user where id=#{id}")
@TargetMethod(name = "findUserById")
void findUserById2(@Param("id") Integer id, AsyncDaoCallback<User> callback);
}`
异步方法void的话，那么resultType是void就没有构造函数，无法构造出对象
是我姿势错了吗？