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问答 无法获取到自定义sql 的值
发布于 2333天前 作者 qq_5a88e4e5 1371 次浏览 复制 上一个帖子 下一个帖子
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  public boolean isExist(Dao dao , Integer id , String table , String column ){
        Sql sql= Sqls.create("select GROUP_CONCAT( distinct $column  )  from  $table");
        sql.vars().set("table",table ).set("column",column);
        log.debug(sql);
        sql.setCallback(Sqls.callback.ints());
        System.out.println(sql.getList(Integer.class)+"..........................");
        Set<Integer> set= Mirror.me(Set.class).born( sql.getList(Integer.class));
        System.out.println(set);
        return  set.contains(id);


    }
3 回复
 public boolean isExist(Dao dao , Integer id , String table , String column ){
        Sql sql= Sqls.create("select GROUP_CONCAT( distinct $column  )  from  $table");
        sql.vars().set("table",table ).set("column",column);
        log.debug(sql);
        sql.setCallback(Sqls.callback.str());
        dao.execute(sql);
        System.out.println(sql.getObject(String.class)+"..........................");
        System.out.println(Arrays.toString(sql.getObject(String.class).split(",")));
        Set<String> set= Mirror.me(Set.class).born(Arrays.asList( sql.getObject(String.class).split(",")));
        log.debug(set);
        System.out.println(set);
        return  set.contains(String.valueOf(id));


    }
[ERROR] 09:20:12.372 org.nutz.mvc.impl.NutLoading.load(NutLoading.java:125) - Error happend during start serivce!
org.nutz.lang.born.BorningException: Fail to born or cast to 'java.util.Set'
 by args: [@([0, 1, 2])]
 because: No suitable Constructor or Factory Method!!
	at org.nutz.lang.Mirror.born(Mirror.java:988)
	at com.yixin.project.xyd.admin.MainSetup.isExist(MainSetup.java:44)
	at com.yixin.project.xyd.admin.MainSetup.init(MainSetup.java:27)
	at com.wangzc.mvc.setup.AbstractSetup.init(AbstractSetup.java:63)
	at org.nutz.mvc.impl.NutLoading.evalSetup(NutLoading.java:274)
	at org.nutz.mvc.impl.NutLoading.load(NutLoading.java:121)
	at org.nutz.mvc.ActionHandler.<init>(ActionHandler.java:19)
	at org.nutz.mvc.NutFilter._init(NutFilter.java:91)
	at org.nutz.mvc.NutFilter.init(NutFilter.java:69)
	at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:285)
	at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:266)
	at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108)
	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4637)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5282)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:754)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
	at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1736)
	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.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
	at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:482)
	at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:431)
	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.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
	at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
	at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
	at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
	at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401)
	at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
	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 sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:346)
	at sun.rmi.transport.Transport$1.run(Transport.java:200)
	at sun.rmi.transport.Transport$1.run(Transport.java:197)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
27-Jun-2018 09:20:12.390 涓ラ噸 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal One or more Filters failed to start. Full details will be found in the appropriate container log file
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
27-Jun-2018 09:20:12.391 涓ラ噸 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.startInternal Context [] startup failed due to previous errors
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:748)

报错的是Mirror.me(Set.class).born,不是自定义SQL

接口又怎么能生成对象呢?

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