我试图在div上拖放图像.图像不会被拖到div上,并给出以下错误
Uncaught TypeError: Failed to execute 'appendChild' on 'Node': parameter 1 is not of type 'Node'.draganddrop.html:20 dropdraganddrop.html:26 ondrop
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码
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Creativity Dashboard</title>
<!-- Required CSS -->
<link href="css/movingboxes.css" rel="stylesheet">
<link href="css/compare.css" rel="stylesheet">
<!--[if lt IE 9]>
<link href="css/movingboxes-ie.css" rel="stylesheet" media="screen">
<![endif]-->
<!-- Required script -->
<script src="http://code.jquery.com/jquery-1.8.0.min.js"></script>
<script src="js/jquery.movingboxes.js"></script>
<!-- Demo only -->
<link href="demo/demo.css" rel="stylesheet">
<script src="demo/demo.js"></script>
<script>
function allowDrop(ev) {
ev.preventDefault();
}
function drag(ev) {
ev.dataTransfer.setData("text", ev.target.id);
}
function drop(ev) {
ev.preventDefault();
var …Run Code Online (Sandbox Code Playgroud) 如何在完整的eclipse工作区中搜索字符串?我无法在eclipse工作区中找到文本但是我在工作区中找不到指定的字符串.
在哪里可以找到Google Chrome日志?如果崩溃,我可以在哪个位置找到Chrome日志?
无法在intellij中打开调试器端口.端口号9009与在应用程序的配置文件中设置的端口号匹配.
<java-config debug-options="-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=9009" system-classpath="" native-library-path-prefix="D:\Project\lib\windows\64bit" classpath-suffix="">
<jvm-options>-XX:MaxPermSize=192m</jvm-options>
<jvm-options>-client</jvm-options>
<jvm-options>-XX:+UnlockDiagnosticVMOptions</jvm-options>
<jvm-options>-XX:+LogVMOutput</jvm-options>
<jvm-options>-XX:LogFile=${com.sun.aas.instanceRoot}/logs/jvm.log</jvm-options>
<jvm-options>-Djava.endorsed.dirs=${com.sun.aas.installRoot}/modules/endorsed${path.separator}${com.sun.aas.installRoot}/lib/endorsed</jvm-options>
<jvm-options>-Djava.security.policy=${com.sun.aas.instanceRoot}/config/server.policy</jvm-options>
<jvm-options>-Djava.security.auth.login.config=${com.sun.aas.instanceRoot}/config/login.conf</jvm-options>
<jvm-options>-Dcom.sun.enterprise.security.httpsOutboundKeyAlias=s1as</jvm-options>
<jvm-options>-Djavax.net.ssl.keyStore=${com.sun.aas.instanceRoot}/config/keystore.jks</jvm-options>
<jvm-options>-Djavax.net.ssl.trustStore=${com.sun.aas.instanceRoot}/config/cacerts.jks</jvm-options>
<jvm-options>-Djava.ext.dirs=${com.sun.aas.javaRoot}/lib/ext${path.separator}${com.sun.aas.javaRoot}/jre/lib/ext${path.separator}${com.sun.aas.instanceRoot}/lib/ext</jvm-options>
<jvm-options>-Djdbc.drivers=org.apache.derby.jdbc.ClientDriver</jvm-options>
<jvm-options>-DANTLR_USE_DIRECT_CLASS_LOADING=true</jvm-options>
<jvm-options>-Dcom.sun.enterprise.config.config_environment_factory_class=com.sun.enterprise.config.serverbeans.AppserverConfigEnvironmentFactory</jvm-options>
<jvm-options>-Dosgi.shell.telnet.port=4766</jvm-options>
<jvm-options>-Dosgi.shell.telnet.maxconn=1</jvm-options>
<jvm-options>-Dosgi.shell.telnet.ip=127.0.0.1</jvm-options>
<jvm-options>-Dfelix.fileinstall.dir=${com.sun.aas.installRoot}/modules/autostart/</jvm-options>
<jvm-options>-Dfelix.fileinstall.poll=5000</jvm-options>
<jvm-options>-Dfelix.fileinstall.debug=1</jvm-options>
<jvm-options>-Dfelix.fileinstall.bundles.new.start=true</jvm-options>
<jvm-options>-Dorg.glassfish.web.rfc2109_cookie_names_enforced=false</jvm-options>
<jvm-options>-XX:NewRatio=2</jvm-options>
<jvm-options>-Xmx2048m</jvm-options>
</java-config>
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IntelliJ中的配置:

当我尝试为此应用程序启用远程调试时,会出现以下错误:

每次我在TomCat上运行我的Web应用程序时,它都会给我一个错误..jsp文件没有任何问题,只是我必须重新启动服务器,有时完整的IDE会让这个错误消失.
错误如下
2014年3月12日下午5:57:01 org.apache.catalina.core.StandardWrapperValve在路径[/ Assignment_1_Flight_Reservation_System]的上下文中调用SEVERE:servlet [jsp]的Servlet.service()引发异常[无法为JSP编译类]因为根本原因java.io.IOException:tmpFile.renameTo(classFile)在org.apache.jasper.compiler.jasper.compiler.jatper.installSmap上的org.apache.jasper.compiler.SmapUtil $ SDEInstaller.install(SmapUtil.java:204)失败SmapUtil.java:163)org.apache.jas上的org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:483)org.apache.jasper.compiler.Compiler.compile(Compiler.java:378) .compiler.Compiler.compile(Compiler.java:353)atg.apache.jasper.compiler.Compiler.compile(Compiler.java:340)atg.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)at at Org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)位于org.apache.jasper.servle的org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)t.JspServlet.service(JspServlet.java:334)位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)的javax.servlet.http.HttpServlet.service(HttpServlet.java:728) .apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)位于org.apache.catalina.core.ApplicationFilterChain的org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393) .internalDoFilter(ApplicationFilterChain.java:243)org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)at org. apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)位于org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve. java:171)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)org.apache.catalina.connector .CoyoteAdapter.service(CoyoteAdapter.java:408)org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)at org.apache.coyote.AbstractProtocol $ AbstractConnectionHandler.process(AbstractProtocol.java:589)at at org.apache.tomcat.util.net.JIoEndpoint $ SocketProcessor.run(JIoEndpoint.java:312)at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)at java.util.concurrent.ThreadPoolExecutor $ Worker.在java.lang.Thread.run上运行(ThreadPoolExecutor.java:615)(Thread.java:744)
我在Intellij中调试代码.我使用maven来构建项目,并且在本地.m2存储库中有各种版本的项目.当我开始调试时,Intellij继续从项目的上一个快照中选择旧版本的代码.如何使IntelliJ从本地存储库调试最新代码?
我想为初学者创建一个本地视频文件文件的Blob:///home/user/NodeJS/Projects/project1/routes/../videosTrans/Node.js教程 - 介绍Node2的Node.js. js.mp4
我无法理解Blob的确切格式.我希望创建它以将其作为createObjectURL()函数的输入.以下不起作用:
var URL = this.window.URL || this.window.webkitURL;
var file = new Blob(["file:///home/sanika/NodeJS/Projects/project1/routes/../videosTrans/Node.js tutorial for beginners - an introduction to Node.js with Express2.js.mp4"], "type" : "video\/mp4");
var value = URL.createObjectURL(file);
Run Code Online (Sandbox Code Playgroud) 我是java中的正则表达式的新手.如何检查文件名是否具有以下格式update_9_0_27?是这样的[0-9][\\_][0-9][\\_][0-100]吗?
我想知道如何修复一个设置为1280X720的设备的浏览器分辨率,以便使用gwt在java中开发的Web应用程序看起来没有拉伸.我试过了
int width= windows.getClientWidth();
int height= windows.getClientHeight();
RootPanel.get().setHeight(height + "px");
RootPanel.get().setWidth(width + "px");
Run Code Online (Sandbox Code Playgroud) 我在我创建的Spring MVC项目中有以下结构.
public class CustomerTest {
//@Mock
//private Customer customer;
@Mock
private CustomerService service;
@InjectMocks
private CustomersController custcontroller;
private MockMvc mockmvc;
/* Before executes before each and every test */
@Before
public void setup() {
MockitoAnnotations.initMocks(this);
mockmvc = MockMvcBuilders.standaloneSetup(custcontroller).build();
}
/*test that our requests are being sent*/
@Test
public void getExistingCustomerEntry() throws Exception {
// assertEquals(expected parameter,your parameter)
Customer cust = new Customer();
cust.setCustomer_id(1L);
cust.setName("sam");
when(service.find(1L)).thenReturn(cust);
try {
mockmvc.perform(get("/rest/cust-entries/1"))
.andExpect((jsonPath("$.name", Is.is(cust.getName()))))
.andExpect(jsonPath("$.links[*].href", hasItem(endsWith("/cust-entries/1"))))
.andExpect(status().isOk())
.andDo(print());
} catch(Exception e) {
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