Java EE Servlet 几个path

ContextPath

Context ['kɒntekst]

不识庐山真面目，只缘身在此山中。

相对路径

RealPath

绝对路径

ServletPath

就是servlet-mapping 中 的 url-pattern

        <servlet-mapping>
            <servlet-name>TestServlet</servlet-name>
            <url-pattern>/TestServlet</url-pattern>
        </servlet-mapping>

contextPath: /zztest
servletPath: /TestServlet
realPath: F:\e\workspaceflex\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\zztest\
java.runtime.name: Java(TM) SE Runtime Environment
sun.boot.library.path: E:\Oracle\jdk1.6.0_24_x64\jre\bin
java.vm.version: 20.45-b01
shared.loader:
java.vm.vendor: Sun Microsystems Inc.
java.vendor.url: http://java.sun.com/
path.separator: ;
tomcat.util.buf.StringCache.byte.enabled: true
java.vm.name: Java HotSpot(TM) Client VM
file.encoding.pkg: sun.io
sun.java.launcher: SUN_STANDARD
user.country: US
sun.os.patch.level: Service Pack 1
java.vm.specification.name: Java Virtual Machine Specification
user.dir: F:\e\eclipse\sts-3.8.1.RELEASE
java.runtime.version: 1.6.0_45-b06
org.apache.catalina.startup.TldConfig.jarsToSkip: tomcat7-websocket.jar
java.awt.graphicsenv: sun.awt.Win32GraphicsEnvironment
java.endorsed.dirs: F:\e\tomcat\apache-tomcat-7.0.70\endorsed
os.arch: x86
java.io.tmpdir: C:\Users\wl\AppData\Local\Temp\
line.separator: 

java.vm.specification.vendor: Sun Microsystems Inc.
java.naming.factory.url.pkgs: org.apache.naming
user.variant:
os.name: Windows 7
sun.jnu.encoding: Cp1252
tomcat.util.scan.DefaultJarScanner.jarsToSkip: bootstrap.jar,commons-daemon.jar,tomcat-juli.jar,annotations-api.jar,el-api.jar,jsp-api.jar,servlet-api.jar,websocket-api.jar,catalina.jar,catalina-ant.jar,catalina-ha.jar,catalina-tribes.jar,jasper.jar,jasper-el.jar,ecj-*.jar,tomcat-api.jar,tomcat-util.jar,tomcat-coyote.jar,tomcat-dbcp.jar,tomcat-jni.jar,tomcat-spdy.jar,tomcat-i18n-en.jar,tomcat-i18n-es.jar,tomcat-i18n-fr.jar,tomcat-i18n-ja.jar,tomcat-juli-adapters.jar,catalina-jmx-remote.jar,catalina-ws.jar,tomcat-jdbc.jar,tools.jar,commons-beanutils*.jar,commons-codec*.jar,commons-collections*.jar,commons-dbcp*.jar,commons-digester*.jar,commons-fileupload*.jar,commons-httpclient*.jar,commons-io*.jar,commons-lang*.jar,commons-logging*.jar,commons-math*.jar,commons-pool*.jar,jstl.jar,taglibs-standard-spec-*.jar,geronimo-spec-jaxrpc*.jar,wsdl4j*.jar,ant.jar,ant-junit*.jar,aspectj*.jar,jmx.jar,h2*.jar,hibernate*.jar,httpclient*.jar,jmx-tools.jar,jta*.jar,log4j.jar,log4j-1*.jar,mail*.jar,slf4j*.jar,xercesImpl.jar,xmlParserAPIs.jar,xml-apis.jar,junit.jar,junit-*.jar,hamcrest*.jar,org.hamcrest*.jar,ant-launcher.jar,cobertura-*.jar,asm-*.jar,dom4j-*.jar,icu4j-*.jar,jaxen-*.jar,jdom-*.jar,jetty-*.jar,oro-*.jar,servlet-api-*.jar,tagsoup-*.jar,xmlParserAPIs-*.jar,xom-*.jar
java.library.path: E:\Oracle\jdk1.6.0_24_x64\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;E:\Oracle\jdk1.6.0_24_x64\jre\bin;F:/e/java/jdk1.8.0_101/bin/../jre/bin/server;F:/e/java/jdk1.8.0_101/bin/../jre/bin;F:/e/java/jdk1.8.0_101/bin/../jre/lib/amd64;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Microsoft\Web Platform Installer\;C:\Program Files (x86)\Microsoft ASP.NET\ASP.NET Web Pages\v1.0\;F:\e\java\jdk1.8.0_101\bin;C:\Program Files\TortoiseSVN\bin;E:\apache-ant-1.9.6\bin;C:\Program Files\Git\cmd;F:\e\maven\apache-maven-3.2.5\bin;F:\e\eclipse\sts-3.8.1.RELEASE;;.
java.specification.name: Java Platform API Specification
java.class.version: 50.0
sun.management.compiler: HotSpot Client Compiler
os.version: 6.1
org.apache.catalina.startup.ContextConfig.jarsToSkip:
user.home: C:\Users\wl
catalina.useNaming: true
user.timezone: Asia/Shanghai
java.awt.printerjob: sun.awt.windows.WPrinterJob
file.encoding: Cp1252
java.specification.version: 1.6
catalina.home: F:\e\tomcat\apache-tomcat-7.0.70
java.class.path: F:\e\tomcat\apache-tomcat-7.0.70\bin\bootstrap.jar;F:\e\tomcat\apache-tomcat-7.0.70\bin\tomcat-juli.jar;E:\Oracle\jdk1.6.0_24_x64\lib\tools.jar
user.name: wl
java.naming.factory.initial: org.apache.naming.java.javaURLContextFactory
package.definition: sun.,java.,org.apache.catalina.,org.apache.coyote.,org.apache.jasper.,org.apache.naming.,org.apache.tomcat.
java.vm.specification.version: 1.0
sun.java.command: org.apache.catalina.startup.Bootstrap start
java.home: E:\Oracle\jdk1.6.0_24_x64\jre
sun.arch.data.model: 32
user.language: en
java.specification.vendor: Sun Microsystems Inc.
awt.toolkit: sun.awt.windows.WToolkit
java.vm.info: mixed mode
java.version: 1.6.0_45
java.ext.dirs: E:\Oracle\jdk1.6.0_24_x64\jre\lib\ext;C:\Windows\Sun\Java\lib\ext
sun.boot.class.path: E:\Oracle\jdk1.6.0_24_x64\jre\lib\resources.jar;E:\Oracle\jdk1.6.0_24_x64\jre\lib\rt.jar;E:\Oracle\jdk1.6.0_24_x64\jre\lib\sunrsasign.jar;E:\Oracle\jdk1.6.0_24_x64\jre\lib\jsse.jar;E:\Oracle\jdk1.6.0_24_x64\jre\lib\jce.jar;E:\Oracle\jdk1.6.0_24_x64\jre\lib\charsets.jar;E:\Oracle\jdk1.6.0_24_x64\jre\lib\modules\jdk.boot.jar;E:\Oracle\jdk1.6.0_24_x64\jre\classes
server.loader:
java.vendor: Sun Microsystems Inc.
catalina.base: F:\e\workspaceflex\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
file.separator: \
java.vendor.url.bug: http://java.sun.com/cgi-bin/bugreport.cgi
common.loader: ${catalina.base}/lib,${catalina.base}/lib/*.jar,${catalina.home}/lib,${catalina.home}/lib/*.jar
sun.io.unicode.encoding: UnicodeLittle
sun.cpu.endian: little
wtp.deploy: F:\e\workspaceflex\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps
package.access: sun.,org.apache.catalina.,org.apache.coyote.,org.apache.jasper.,org.apache.naming.resources.,org.apache.tomcat.
sun.desktop: windows
sun.cpu.isalist: pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86