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解决跨域报错问题&Access to XMLHttpRequest at ‘xxx‘ from origin ‘xxx‘ has been blocked by CORs policy.header

解决跨域报错问题的笔记一、问题描述二、如何解决1.添加@CrossOrigin注解2.添加CorsConfiguration过滤器3.实现WebMvcConfigurer接口,重写addCorsMappings方法一、问题描述我们在完成前后端分离项目时(Vue+SpringBoot),有很多人会遇到跨域问题(CORS)。跨域问题:指的是浏览器不能执行其他网站的脚本。它是由浏览器的同源策略造成的,是浏览器对javascript施加的安全限制。同源策略:是指协议,域名,端口都要相同,其中有一个不同都会产生跨域问题(浏览器产生)。所谓同源是指,域名,协议,端口均相同,例如:http://www.80

SharePoint - Exception has been thrown by the target of an invocation错误的解决方案

维护SharePointApplication期间,在执行SharePointConfiguration时候遇到错误"AnexceptionoftypeSystem.Reflection.TargetInvocationExceptionwasthrown.Additionalexceptioninformation:Exceptionhasbeenthrownbythetargetofaninvocation."经过排查,发现是管理SharePointserver的account有invalid导致。可以通过下面方式处理:1.使用admin打开SharePointManagementShel

android - 错误 :Gradle build daemon disappeared unexpectedly (it may have been killed or may have crashed)

在Ubuntu中将androidstudio更新到1.1.0后总是显示此错误。我的logcat是:org.gradle.launcher.daemon.client.DaemonDisappearedException:Gradlebuilddaemondisappearedunexpectedly(itmayhavebeenkilledormayhavecrashed)**androidstudio1.0,0.8isworkingfine.**org.gradle.tooling.GradleConnectionException:Couldnotrunbuildactionusin

Android camera2 : java. lang.IllegalStateException : maxImages (1) has already been acquired, 在获取更多之前调用#close

您好,无法解决此问题。我已经在ImageAvailable回调中调用了imageReader.close,但仍然有错误:java.lang.IllegalStateException:maxImages(1)hasalreadybeenacquired,call#closebeforeacquiringmore.我的代码在这里:privateImageReader.OnImageAvailableListenerimageAvailableListener=newImageReader.OnImageAvailableListener(){@OverridepublicvoidonIm

android - 错误 :Cannot configure the 'publishing' extension after it has been accessed

错误:访问后无法配置“发布”扩展。更新我的androidstudio后出现此错误。这是我的app.gradleapplyplugin:'com.android.application'android{compileSdkVersion23buildToolsVersion'23.0.2'defaultConfig{minSdkVersion14targetSdkVersion23versionCode1versionName"1.0"vectorDrawables.useSupportLibrary=truegeneratedDensities=[]}aaptOptions{addit

android - 如何避免 TagManager "IllegalStateException: Results have already been set"

我最近在我的Android应用程序中引入了GoogleTagManager,以便在无需重新部署应用程序的情况下将更改推送到应用程序配置。但我得到的实例是:java.lang.IllegalStateException:Resultshavealreadybeensetatcom.google.android.gms.common.internal.p.a(UnknownSource)atcom.google.android.gms.common.api.b$a.a(UnknownSource)atcom.google.android.gms.tagmanager.ed.a(Unknow

c++ - 运行 boost bcp 工具时出错 : "The Boost path appears to have been incorrectly set"

尝试运行Boost的bcp工具时,出现以下错误:****exception(205):std::runtime_error:TheBoostpathappearstohavebeenincorrectlyset:couldnotfindboost/version.hppin********errorsdetected;seestandardoutputfordetails********错误消息与上面完全一样,它尝试搜索的路径为空。我尝试通过设置BOOST_ROOT环境变量来解决它,但同样的错误又回来了,搜索到的路径仍然是空的。系统为MacOSX10.9.1。

c++ - 在 xcode 中包含 cmath 时出现错误 : '::acos' has not been declared, 等

在尝试构建包含的小型简单项目时出现以下错误在Xcode中:cmath:'*'hasnotbeendeclared'::acos'hasnotbeendeclaredInfileincludedfrom/Xcode4/Projects/libraryLAFMath/Classes/libraryLAFMath.cpInfileincludedfrom/Xcode4/Projects/libraryLAFMath/Classes/libraryLAFMath.h'::acos'hasnotbeendeclaredin/Xcode4/Platforms/iPhoneSimulator.pla

【Vue+Axios】Access to XMLHttpRequest at XXX from origin XXX has been blocked by CORS policy

问题描述基于Vue3和SpringBoot进行前后端分离开发,实现登录功能。在测试提交表单时axios报错。前端报错信息:Uncaughtruntimeerrors:ERRORNetworkErrorAxiosError:NetworkErroratXMLHttpRequest.handleError(webpack-internal:///./node_modules/axios/lib/adapters/xhr.js:155:14浏览器控制台报错:AccesstoXMLHttpRequestat'http://localhost:8088/api/admin/login'fromorigi

Unity中的GUIStyle错误:SerializedObject of SerializedProperty has been Disposed.

笔者在GUI练习中发现此问题。如果读者也遇到这个问题,很可能与Unity或相关库的版本不兼容或其他问题有关。笔者的示例代码1:publicclassL1_GUI:MonoBehaviour{  publicGUIStyleMystyle=newGUIStyle();  privatevoidOnGUI()  {    Mystyle.fontSize=12;         //显示文字    GUI.Label(newRect(0,0,20,20),"This.",Mystyle);  }}示例代码2:publicclassL1_GUI:MonoBehaviour{publicGUIStyl