求大神解答,关于安卓的异常报错

异常信息:failed to connect to /10.4.130.52 (port 8080) after 10000ms

问题描述:我是用真机来测试Android程序的,但是它一直报这个错误,连不上服务端。我查了一下,据说是要把那个IP地址换成自己电脑的IP的地址,我换了之后还是不行,希望有大神来解答一下。

0

3个回答

换IP有什么用,你要在你的电脑上开启服务端程序才行啊

1

出现这个问题是在进行Http请求的时候,在指定时间内没有相应。你自己编写的Android程序的话,建议你的真机和你的服务器在一个网络中,然后把IP地址改称服务器所在主机的IP地址即可。

1

你用电脑开个免费wifi,然后你手机连接wifi就行了

1
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org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)rn at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)rn at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)rn at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)rn at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)rn at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)rn at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)rn at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)rn at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)rn at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)rn at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)rn at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)rn at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)rn at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)rn at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)rn at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)rn at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)rn at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)rn at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)rn at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)rn at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)rn at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)rn at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)rn at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)rn at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)rn at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)rn at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)rn at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)rn at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)rn at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)rn at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)rn at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1074)rn at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)rn at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)rn at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)rn at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)rn at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)rn at java.lang.Thread.run(Thread.java:745)rnrn
求大神解答fragment 切换过快报错
Fragment 里面有listView 是从网络上获取数据显示,网络上获取数据有延迟可能要1秒左右才能显示 ,当数据还没有显示出来时,切换到其他的 fragment 就会报错如下:rnrnFATAL EXCEPTION: mainrnjava.lang.NullPointerExceptionrnat android.view.LayoutInflater.from(LayoutInflater.java:210)rnat com.xdj.alat.adapter.NeedSupplyAdapter.(NeedSupplyAdapter.java:23)rnat com.xdj.alat.fragment.ServiceFragment$1.handleMessage(ServiceFragment.java:75)rnrnrn我用的handler传的数据:rn Handler handler = new Handler() rn public void handleMessage(Message msg) rn String data = (String) msg.obj;rn list_need = new ArrayList();rn if (adapter == null) rn adapter = new NeedSupplyAdapter(getActivity(), list_need);rn needlist.setAdapter(adapter);rn rn ServiceNeedJson.serviceneedjson(data, list_need);rn rn ;rn求大神解答下这种要怎么处理下。还有个问题时,当我访问服务器 ,服务器却没有打开,当开了时这边只要访问过也会报错。
springMVC报错,在线等,求大神解答
在使用spring框架的时候出现找不到类的异常,我自己下载包到导入了,还是这样。这个javax/portlet/PortletException到底是什么???求大神解答rn十二月 23, 2015 11:57:05 上午 org.apache.catalina.core.ApplicationContext logrn严重: StandardWrapper.Throwablernjava.lang.NoClassDefFoundError: javax/portlet/PortletExceptionrn at java.lang.ClassLoader.defineClass1(Native Method)rn at java.lang.ClassLoader.defineClass(ClassLoader.java:800)rn at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)rn at org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:3114)rn at org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:1342)rn at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1823)rn at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1703)rn at java.lang.Class.getDeclaredMethods0(Native Method)rn at java.lang.Class.privateGetDeclaredMethods(Class.java:2625)rn at java.lang.Class.getDeclaredMethods(Class.java:1868)rn at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:609)rn at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:521)rn at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:507)rn at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:241)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:1069)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1042)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)rn at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)rn at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)rn at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)rn at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)rn at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772)rn at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:838)rn at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:537)rn at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:667)rn at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:633)rn at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:681)rn at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:552)rn at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:493)rn at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)rn at javax.servlet.GenericServlet.init(GenericServlet.java:158)rn at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)rn at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)rn at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)rn at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5253)rn at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5543)rn at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)rn at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)rn at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)rn at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)rn at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1263)rn at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1978)rn at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)rn at java.util.concurrent.FutureTask.run(FutureTask.java:262)rn at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)rn at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)rn at java.lang.Thread.run(Thread.java:745)rnCaused by: java.lang.ClassNotFoundException: javax.portlet.PortletExceptionrn at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1854)rn at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1703)rn ... 48 morern十二月 23, 2015 11:57:05 上午 org.apache.catalina.core.StandardContext loadOnStartuprn严重: Servlet [SpringMVC05] in web application [/SpringMVC04] threw load() exceptionrnjava.lang.ClassNotFoundException: javax.portlet.PortletExceptionrn at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1854)rn at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1703)rn at java.lang.ClassLoader.defineClass1(Native Method)rn at java.lang.ClassLoader.defineClass(ClassLoader.java:800)rn at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)rn at org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:3114)rn at org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:1342)rn at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1823)rn at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1703)rn at java.lang.Class.getDeclaredMethods0(Native Method)rn at java.lang.Class.privateGetDeclaredMethods(Class.java:2625)rn at java.lang.Class.getDeclaredMethods(Class.java:1868)rn at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:609)rn at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:521)rn at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:507)rn at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:241)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:1069)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1042)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)rn at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)rn at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)rn at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)rn at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)rn at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772)rn at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:838)rn at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:537)rn at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:667)rn at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:633)rn at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:681)rn at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:552)rn at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:493)rn at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)rn at javax.servlet.GenericServlet.init(GenericServlet.java:158)rn at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)rn at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)rn at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)rn at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5253)rn at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5543)rn at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)rn at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)rn at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)rn at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)rn at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1263)rn at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1978)rn at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)rn at java.util.concurrent.FutureTask.run(FutureTask.java:262)rn at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)rn at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)rn at java.lang.Thread.run(Thread.java:745)rn
导入项目后R.id.lv 报错!求大神解答
[size=24px]不知道怎么了 我截了图 但是 图片无法上传,我导入了项目后 R文件中有lv1这个变量 可是 在引用的时候却报错[/size]rnpackage com.example.listadapter;rnrnimport java.util.ArrayList;rnimport java.util.List;rnrnimport android.R;rnimport android.os.Bundle;rnimport android.app.Activity;rnimport android.view.Menu;rnimport android.widget.ArrayAdapter;rnimport android.widget.ListView;rnrnpublic class MainActivity extends Activity rnrn @Overridern protected void onCreate(Bundle savedInstanceState) rn super.onCreate(savedInstanceState);rn setContentView(R.layout.activity_list_item);rn //返回listView实例rn ListView lv1=(ListView) findViewById(R.id.lv1);[color=#FF0000]!!!!!!!!!!这个位置lv1下报错 lv1 cant be resolved or it is not a field[/color]rn List items=new ArrayList();rn //向集合中添加数据rn for (int i = 0; i < 10; i++) rn items.add("数据"+(i+1));rn rn /**rn * 第一种适配器rn * ArrayAdapter(Context,textViewResourceId 就是listview中每一行的布局,数据集合)rn */ rn ArrayAdapter adapter=new ArrayAdapter(this,android.R.layout.simple_expandable_list_item_1,items);rn //设置适配器rn lv1.setAdapter(adapter);rn rnrn @Overridern public boolean onCreateOptionsMenu(Menu menu) rn // Inflate the menu; this adds items to the action bar if it is present.rn getMenuInflater().inflate(R.menu.main, menu);rn return true;rn rnrnrn
jboss后台报错,求大神解答
ERROR [URLDeploymentScanner] Incomplete Deployment listing:rnrn--- Incompletely deployed packages ---rnorg.jboss.deployment.DeploymentInfo@86bb2322 url=file:/D:/baserver/jboss/servernr/default/deploy/batj-ds.xml rn deployer: org.jboss.deployment.XSLSubDeployer@82294brn status: nullrn state: FAILEDrn watch: file:/D:/baserver/jboss/server/default/deploy/batj-ds.xmlrn altDD: nullrn lastDeployed: 1519264708717rn lastModified: 1519264708710rn mbeans:rnrn--- MBeans waiting for other MBeans ---rnObjectName: persistence.units:jar=batj_server.jar,unitName=batjPUrn State: NOTYETINSTALLEDrn I Depend On:rn jboss.jca:name=jdbc/batjDS,service=DataSourceBindingrn Depends On Me:rn jboss.j2ee:jar=batj_server.jar,name=ejb/BaseSet,service=EJB3rn jboss.j2ee:jar=batj_server.jar,name=ejb/Setting,service=EJB3rnrnObjectName: jboss.j2ee:jar=batj_server.jar,name=ejb/BaseSet,service=EJB3rn State: NOTYETINSTALLEDrn I Depend On:rn persistence.units:jar=batj_server.jar,unitName=batjPUrnrnObjectName: jboss.j2ee:jar=batj_server.jar,name=ejb/Setting,service=EJB3rn State: NOTYETINSTALLEDrn I Depend On:rn persistence.units:jar=batj_server.jar,unitName=batjPrn怎么办?
安卓系统刷机教程
2010-09-04 关于各机型刷安卓的一些解答
安卓,新建simpleAdapter报错,求大神看看
在girdview中添加simpleAdapter,为什么新建SimpleAdapter的时候会报错?nn我的代码如下:nnnn n n n n n n n nnn n n n nnnnpackage com.example.test4;nnimport android.os.Bundle;nimport android.widget.*;nimport java.util.*;nimport android.app.Activity;nimport android.view.Menu;nnpublic class MainActivity extends Activity n n SimpleAdapter s=null;n GridView grid=null;n List> list=null;n @Overriden protected void onCreate(Bundle savedInstanceState) n super.onCreate(savedInstanceState);n setContentView(R.layout.activity_main);n grid=(GridView)super.findViewById(R.id.gridview);n initAdapter();n grid.setAdapter(s);n nnn @Overriden public boolean onCreateOptionsMenu(Menu menu) n // Inflate the menu; this adds items to the action bar if it is present.n getMenuInflater().inflate(R.menu.main, menu);n return true;n n n public void initAdapter()n n Map map=new HashMap();n map.put("图片", R.drawable.a1);n list.add(map);n map.put("图片", R.drawable.a2);n list.add(map);n map.put("图片", R.drawable.a1);n list.add(map);n s=new SimpleAdapter(MainActivity.this,list,R.layout.imageview,new String[]"图片",new Integer[]R.id.image);n n n n n n nnnn其中,s=new SimpleAdapter.....那行被报错,我截张图:n![图片说明](https://img-ask.csdn.net/upload/201511/17/1447764297_753602.png)nn应该就是说构造方法没这样的重载,明明就应该没错的吧,请问这里是怎么回事?应该怎么解决?nn
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求大神帮忙解答下,学习安卓的过程中,关于SampleAdapter的问题
package com.aa.cao;nnimport java.util.ArrayList;nimport java.util.HashMap;nimport java.util.List;nimport java.util.Map;nnimport android.app.Activity;nimport android.os.Bundle;nimport android.view.Menu;nimport android.view.MenuItem;nimport android.widget.ListView;nimport android.widget.SimpleAdapter;nnnpublic class MainActivity extends Activity n private ListView listview;n private SimpleAdapter simp_adapter;n private List>datalist;n nn @Overriden protected void onCreate(Bundle savedInstanceState) n super.onCreate(savedInstanceState);n setContentView(R.layout.activity_main);n listview.setAdapter(simp_adapter);n simp_adapter=new SimpleAdapter(this, getData(), R.layout.item, new String[]"pic","text", new int[]R.id.pic,R.id.text);n datalist=new ArrayList>();n n n private List> getData()n for(int i=0;i<20;i++)n Mapmap=new HashMap();n map.put("pic", R.drawable.ic_launcher);n map.put("text", "慕课网"+i);n datalist.add(map);n n return datalist;n nnn @Overriden public boolean onCreateOptionsMenu(Menu menu) n // Inflate the menu; this adds items to the action bar if it is present.n getMenuInflater().inflate(R.menu.main, menu);n return true;n nn @Overriden public boolean onOptionsItemSelected(MenuItem item) n // Handle action bar item clicks here. The action bar willn // automatically handle clicks on the Home/Up button, so longn // as you specify a parent activity in AndroidManifest.xml.n int id = item.getItemId();n if (id == R.id.action_settings) n return true;n n return super.onOptionsItemSelected(item);n nnn不知道为什么,一运行就报错,实在找不出问题,求大神帮忙解答下,感谢!n
关于更新Android Studio后报错,求大神解答。
运行新的APP是顺便更新了下Android Studio,完事了再运行其他项目都是一直报这个错误,在站里搜帖子说是apk保存地址中的output.json文件的问题,删除掉就好了,我照做还是报一样的错,还有其他解决方法吗,有没有大神可以指导一下的,谢谢啦。[img=https://img-bbs.csdn.net/upload/201902/22/1550803216_849188.png][/img]
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2016小码哥5期安卓基础大神班
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Android 一些比较厉害的大牛博客
    鸿洋:http://blog.csdn.net/lmj623565791     爱哥:http://blog.csdn.net/aigestudio     老罗(源码分析):http://blog.csdn.net/luoshengyang     阿拉神农(源码分析):http://blog.csdn.net/innost    小巫:http://blog.csdn.net/wwj...
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求大神解答,谢谢
grant selectrnon table 职工,部门rnto 王明rnrnrnrn消息102,级别15,状态1,第2行rn','附近有语法错误。
求大神解答
using System;rnusing System.Collections.Generic;rnusing System.Linq;rnusing System.Text;rnrnnamespace 写一个读入整数的方法rnrn class Programrn rn static void Main(string[] args)rn rn Console.WriteLine("请输入你的年龄");rn int age = Console.[color=#FF0000]ReadInt();rn[/color] Console.WriteLine("你刚刚输入的年龄为:");rn rn public static int ReadInt()rn rn int number = 0;rn dorn rn tryrn rn number=Convert.ToInt32(Console.ReadLine());rn rn catchrn rn Console.WriteLine("你输入有误,请重新输入");rn return number;rn rn rn while (true);rn rn rn rnrn[color=#FF0000][b]]错误提示:错误 1 “System.Console”并不包含“ReadInt”的定义 rn[/b][/color]
面试题,求大神解答
请用C#实现以下功能rn1.一个winform程序,内嵌浏览器访问一个html页面,显示html内容rn2.在html页面中创建一个按钮A,点击按钮可以显示又winform弹出的对话框rn3.在winform程序界面上,创建一个按钮B,点击后,显示又html javascript弹出的消息提示框rn4.由winform程序界面上,创建一个按钮C,点击后将一个js函数注入到浏览器的html中,改变按钮A的点击效果,
求大神帮忙解答!!
大神,您好:rn 小弟遇到了下面的代码:rn [code=java]<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>rn<%rnString path = request.getContextPath();rnString basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";rnString errorMessage=(String)request.getAttribute("errorMessage");rn%>rn//七rnrnrnrn rn 远程医患交流平台-登陆rn rnrnrnrnrn rn rn rn rn rn rn 账 户:rn 密 码: rn 用户类型:医生用户患者用户管理员 rn <%rn if(errorMessage!=null) %>rn <%=errorMessage %>rn <% rn %>rnrnrn rn rn rn rn rn rn rn rn rnrnrnrn[/code]rn 下图为代码运行效果:rn [img=https://img-bbs.csdn.net/upload/201601/20/1453219648_447217.jpg][/img]rn 求高手点拨:rn 这个类型的 “表单提交 ”的机制,在哪行代码体现?rn 并且,这个类型的用户,单击图片中的“登陆”按钮后,应该触发了服务器验证用户是否合法的流程中。rn 上面:“单击图片中的登陆按钮后,登入系统。这一行 ”伪代码“, 要是换成对应的Java代码或者Jsp代码的话,应该分别走哪几行代码?rn 希望高手,能够指教!!rn 小弟,100分奉上!!rn [img=https://img-bbs.csdn.net/upload/201601/20/1453220877_494394.png][/img]
新手求大神解答!!
最近学习javaweb的servlet,做了一个查询 跳转完了总是空白页rnconsole里是这样的rn严重: Servlet.service() for servlet jsp threw exceptionrnjava.lang.ArrayIndexOutOfBoundsException: -1rn at org.eclipse.jdt.internal.compiler.codegen.StackMapFrame.addStackItem(StackMapFrame.java:92)rn at org.eclipse.jdt.internal.compiler.ClassFile.traverse(ClassFile.java:5586)rn at org.eclipse.jdt.internal.compiler.ClassFile.generateStackMapTableAttribute(ClassFile.java:4303)rn at org.eclipse.jdt.internal.compiler.ClassFile.completeCodeAttribute(ClassFile.java:1378)rn at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.generateCode(AbstractMethodDeclaration.java:338)rn at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.generateCode(AbstractMethodDeclaration.java:270)rn at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.generateCode(TypeDeclaration.java:566)rn at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.generateCode(TypeDeclaration.java:635)rn at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.generateCode(CompilationUnitDeclaration.java:368)rn at org.eclipse.jdt.internal.compiler.Compiler.process(Compiler.java:781)rn at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:470)rn at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:436)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:361)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:336)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:323)rn at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)rn at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)rn at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:405)rn at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:349)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:721)rn at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466)rn at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391)rn at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)rn at servlets.Update1.doGet(Update1.java:32)rn at servlets.Update1.doPost(Update1.java:40)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:644)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)rn at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)rn at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)rn at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:136)rn at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)rn at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)rn at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)rn at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:526)rn at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1078)rn at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:655)rn at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222)rn at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1566)rn at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1523)rn at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)rn at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)rn at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)rn at java.lang.Thread.run(Unknown Source)rnrnorg.apache.jasper.JasperException: Unable to compile class for JSPrn at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:579)rn at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)rn at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:405)rn at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:349)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:721)rn at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466)rn at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391)rn at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)rn at servlets.Update1.doGet(Update1.java:32)rn at servlets.Update1.doPost(Update1.java:40)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:644)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)rn at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)rn at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)rn at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:136)rn at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)rn at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)rn at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)rn at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:526)rn at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1078)rn at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:655)rn at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222)rn at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1566)rn at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1523)rn at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)rn at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)rn at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)rn at java.lang.Thread.run(Unknown Source)rnCaused by: java.lang.ArrayIndexOutOfBoundsException: -1rn at org.eclipse.jdt.internal.compiler.codegen.StackMapFrame.addStackItem(StackMapFrame.java:92)rn at org.eclipse.jdt.internal.compiler.ClassFile.traverse(ClassFile.java:5586)rn at org.eclipse.jdt.internal.compiler.ClassFile.generateStackMapTableAttribute(ClassFile.java:4303)rn at org.eclipse.jdt.internal.compiler.ClassFile.completeCodeAttribute(ClassFile.java:1378)rn at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.generateCode(AbstractMethodDeclaration.java:338)rn at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.generateCode(AbstractMethodDeclaration.java:270)rn at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.generateCode(TypeDeclaration.java:566)rn at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.generateCode(TypeDeclaration.java:635)rn at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.generateCode(CompilationUnitDeclaration.java:368)rn at org.eclipse.jdt.internal.compiler.Compiler.process(Compiler.java:781)rn at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:470)rn at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:436)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:361)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:336)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:323)rn at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)rn ... 39 morern
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