learning eclipse ide

the name of the current web app: Getcontextpath ()String Contextpath=servletcontext.getcontextpath ();System.out.println (ContextPath);Gets the input stream of a file object for the current web app, where the file is created in the SRC directorytry {ClassLoader Classloader=getclass (). getClassLoader ();InputStream Is=classloader.getresourceasstream ("jdbc.properties");System.out.println ("1:" +is);} catch (Exception e) {E.printstacktrace ();}The second method:try {InputStream Is2=servletcontex

Failed to load the JNI shared library is eclipse no OH load into Jvm.dll fileThere are two reasons:1. The system environment variable is not configured, reinstall JRE and JDK, and configure environment variables.Java_home=c:\program files\java\jdk1.7.0_17Class_path=.; %java_home%\lib\dt.jar;%java_home%\lib\tools.jar;path=%java_home%\bin;%java_home%\jre\bin;%parth%;2, JDK version and Eclipse version are inco

, remember is copy to the current project directoryeclipse highlighting, smart tips questions:The first time not smart tips, this time to run the project, there is a highlight and smart tipsConfigure includeSometimes you have to add some libraries or header files to the directory: Eclipse right-click Project Properties->c++ general-> Paths and Symbols:E:\android\android-ndk-r10b\platforms\android-19\arch-arm\usr\includee:\android\android-ndk-r10b\sour

Maven Learning Summary (vii) Creating a Web project with Maven in--eclipse create a Web project 1.1 Choose Build Maven ProjectSelect File--New->project, as shown in:　　Select Maven---maven Project in the new window. Click "Next" as shown:　　1.2 Select project PathSelect the storage directory for the project according to the actual situation of the project, or select the "Use default Workspace location" defaul

Eclipse Debug (Debug) Learning ExperienceEnter debug mode:1. Set Breakpoints2. Start the debug mode on the servers side3, run the program, in the background encountered a breakpoint, enter the Debug debugging state=============================scope function Shortcut keysGlobal single-Step return F7Global single-Step skip F6Global single-step jump into F5Global single-Step jump selection Ctrl+f5Global Debug

OpenCV learning notes: 2.49 + Eclipse configuration tutorial, opencv2.49 1. Install the opencv Library 1.1 double-click opencv-2.4.9.exe and install it in the specified directory. 1.2 install the VC2010 Runtime Library. Baidu searches for the VC2010 Runtime Library and downloads and installs it. If the system prompts that files such as dll are still missing when you run the program after completing all the

Java basic learning Summary (with some common eclipse operations), javaeclipseI. this keyword1. Use this to call the member variables and member functions of this class.2. Use this to call the constructor.2. static Keywords of static variables1. contains static member variables and member functions. You can use the class name directly.2. There is only one static member variable.3. this cannot be used in sta

.mainfest.xmlAndroid:name= " bind class ground path or . * "9.logcat Query Run ResultsAndroid Four components:Activity (window)Service (services, divided into local and remote services)Broadcast receiver (asynchronous receive broadcast intent, divided into normal broadcast and orderly broadcast, to achieve interprocess communication)Content Provider (data type query, Android.provider)Important Components:Intent Interactive messages (four components common)Bundle dataAndroid SDK API Reference:htt

/server/defau Lt/deploy, complete.4. Create a client① Click File→new→other ... →java Project② Add a reference to the above Ejb_01.jar and the JBoss Client jar package ( $JBOSS _home/clent/jbossall-clent.jar), add to the classpath path. ③ Write the client test class, the code is as followsPackage Com.tgb.ejb.client;import Javax.naming.initialcontext;import Javax.naming.namingexception;import Com.tgb.ejb.helloworld;public class Client {public static void main (string[] args) throws Namingexcepti

Prerequisites:The JDK is already installed.MAVEN is already installed.Eclipse is already installed.The Maven plugin is already installed.Create a new MAVEN project in Eclipse"File" → "New" → "Other ...""maven" → "maven Project" → "Next"Tick "Create A simple project (skip archetype selection)" → "Next""Fill in a name at the group ID, fill in a name at the Artifact ID, because we want to build a Web project, so packaging select the war" → "Next"At this

the outside world5. Use eclipse to bind Tomcat and publish your appStep 1: Get the server run environment configuration, Window/preferences/server/runtime EnvironmenStep 2: Add a serverStep 3: Select the address of the server on the hard disk, and then all are OK/next/finishStep 4: Complete successStep 5: Set the publishing locationModifying the location of a tomcat publicationThen create a new index.html file in the WebContent directory with the fol

Eclipse plug-in development learning note "7"---add preferencesFirst, we create a new plug-in project, Open the Plugin.xml file Select the Extensions tab, add a org.eclipse.ui.preferencePages extension point, and add a page as shown in the figure, and note that the category of the second page is the ID of the first page.Right-click the SRC folder to create a new class, create 2 classes for Page1,page2, inhe

; $ goal>Rungoal> - Goals> - Execution> the executions> - plugin>Wuyi Plugins> the Build> - Project>2.2. Publish the Web project to the WebApps directory of the TOMCA serverSelect the Web project (or select the Pom.xml file for the Web project) → "Run as" → "Maven install" as shown in:　　After the Maven install command is executed, you can package the WebProject project into a Webproject.war

Reference Original: http://blog.csdn.net/wpwbb510582246/article/details/52556753Method One: Replace the ic_launcher-web.png picture file under the Res folderMethod Two:1. Click the Androidmanifest.xml file under the project folder2. Click the application option3, click Browse on the icon line, pop up the following dialog box4, click Creat New Icon, pop up the following dialog box5. Then click Next to popup the Configuration Item icon dialog box6, and then according to their own needs to configur

] BUILD SUCCESSEclipse, select Import Maven projects, click Browse ... Select the Hadoop source root directory and import individual projects13) A large cone error, right-click, maven,disabledependency Management, enable dependency management, then only the remaining common packet errorproject->buildautomacilly, remove Maven auto-compile synchronization) q:failed to execute goal Org.apache.hadoop:hadoop-maven-plugins:2.5.2:protoc (COMPILE-PROTOC) on Project hadoop- Common:org.ap

1. Use JUnit to test a simple print functionFirst create a test class in projectAdd JUnit LibraryCreate a new JUnit test case in this project and correlate the corresponding class to be tested, select the function to be testedSimple modification of mytest contentRunning (Run as Junit test)2. About MAVENFirst detect if the Java environment variable is fully configuredFirst in the CMD input java, the Discovery command is not recognized, in the environment variables to configure the Java environmen

); FileInputStream fis = new FileInputStream (f); PrintWriter pw = new PrintWriter (new OutputStreamWriter (FOS, "utf-8")); BufferedReader br = new BufferedReader (new InputStreamReader (FIS, "utf-8"));} catch (Exception e) {e.printstacktrace ();}With the above code, we implemented the use of wrapper classes and the use of our specified character encoding scheme for more convenient character manipulation.For other wrapping methods with this same byte-based stream, here is no longer a repeat.It i

1. Install anaconda;1.1 Installing Scipy:conda Install SciPy2. Download the Eclipse installation Jree developer version;3. Download and install Graphviz;4. Configuring Eclipse and Anaconda24.1 In Eclipse help->eclipse marketsplace, enter Pydev for installation, which may take longer to install. Of course, you can also

... 2, enter the configuration interface, the Maver Build right mouse button new, and then modify the name, click Browse Workspace Select the project, and then fill in goals (target) for the package, click Apply Application is OK. 3, click Apply, look at the console if the build success the release is successful! 4, the project on the right mouse button refresh, and then you can see the newly generated directory structure and jar files

1. Download the eclipse IDE for Java EE under Www.eclipse.org/downloads 2. Download tomcat7.0 to tomcat.apache.org 3. To http://www.eclipsetotale.com/tomcatPlugin.html download configure Tomcat to eclipse plugin 4. Download Struts2 library files to struts.apache.org 5. Create a Dynamic Web site project on Eclipse 6. Ad