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‎.classpath‎

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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="src" path="src"/>
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<classpathentry kind="src" path="test"/>
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/jre1.8.0_251"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/cglib-nodep-3.1.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/commons-collections-3.2.2.jar" sourcepath="D:/apache/commons-collections-3.2.2-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/commons-httpclient-3.1.jar" sourcepath="D:/FepH5Server/repo/commons-httpclient/commons-httpclient/3.1/commons-httpclient-3.1-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/dom4j-1.6.1.jar" sourcepath="D:/FepH5Server/repo/dom4j/dom4j/1.6.1/dom4j-1.6.1-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/jaxen-1.1.1.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/jBCrypt-0.4.1.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/sa-jdi.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/commons-io-2.5.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/jstl-1.1.2.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/standard.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/commons-dbutils-1.7.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/commons-beanutils-1.9.4-20171008.104537-25.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/spring-aop-5.2.7.RELEASE.jar" sourcepath="D:/Spring/spring-5.2.7.RELEASE-dist/spring-framework-5.2.7.RELEASE/libs/spring-aop-5.2.7.RELEASE-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/spring-aspects-5.2.7.RELEASE.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/spring-beans-5.2.7.RELEASE.jar" sourcepath="D:/Spring/spring-5.2.7.RELEASE-dist/spring-framework-5.2.7.RELEASE/libs/spring-beans-5.2.7.RELEASE-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/spring-context-5.2.7.RELEASE.jar" sourcepath="D:/Spring/spring-framework-5.2.7.RELEASE.zip"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/spring-core-5.2.7.RELEASE.jar" sourcepath="D:/Spring/spring-5.2.7.RELEASE-dist/spring-framework-5.2.7.RELEASE/libs/spring-core-5.2.7.RELEASE-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/spring-expression-5.2.7.RELEASE.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/spring-jdbc-5.2.7.RELEASE.jar" sourcepath="D:/Spring/spring-5.2.7.RELEASE-dist/spring-framework-5.2.7.RELEASE/libs/spring-jdbc-5.2.7.RELEASE-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/spring-orm-5.2.7.RELEASE.jar" sourcepath="D:/Spring/spring-5.2.7.RELEASE-dist/spring-framework-5.2.7.RELEASE/libs/spring-orm-5.2.7.RELEASE-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/spring-tx-5.2.7.RELEASE.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/spring-web-5.2.7.RELEASE.jar" sourcepath="D:/Spring/spring-5.2.7.RELEASE-dist/spring-framework-5.2.7.RELEASE/libs/spring-web-5.2.7.RELEASE-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/spring-webmvc-5.2.7.RELEASE.jar" sourcepath="D:/Spring/spring-5.2.7.RELEASE-dist/spring-framework-5.2.7.RELEASE/libs/spring-webmvc-5.2.7.RELEASE-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/commons-logging-1.2.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/aspectjweaver.jar" sourcepath="D:/Spring/aspectj-1.9.5-src/aspectjweaver-1.9.5-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/commons-fileupload-1.2.1.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/jackson-annotations-2.11.1.jar" sourcepath="D:/Jackson/jackson-annotations-2.11.1-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/jackson-core-2.11.1.jar" sourcepath="D:/Jackson/jackson-core-2.11.1-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/jackson-databind-2.11.1.jar" sourcepath="D:/Jackson/jackson-databind-2.11.1-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/commons-digester-1.6.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/asm-8.0.1.jar" sourcepath="D:/ASM/JAR包/asm-8.0.1-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/javassist.jar" sourcepath="D:/Javassist/javassist-rel_3_27_0_ga.zip"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/log4j-1.2.17.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/log4j-api-2.13.3.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/log4j-core-2.13.3.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/mybatis-3.5.5.jar" sourcepath="D:/MyBatis/mybatis-3-mybatis-3.5.5.zip"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/ognl-3.2.14.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/slf4j-api-1.7.30.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/slf4j-log4j12-1.7.30.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/mybatis-spring-2.0.5.jar" sourcepath="D:/MyBatis/mybatis-spring-2.0.5-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/ojdbc6-11.2.0.4.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/tools.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/httpclient-4.5.9.jar" sourcepath="D:/apache/httpclient-4.5.9-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/httpcore-4.4.11.jar" sourcepath="D:/apache/httpcore-4.4.11-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/bcprov-ext-jdk15to18-166.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/commons-codec-1.10.jar" sourcepath="D:/apache/commons-codec-1.10-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/javax.mail-1.6.2.jar" sourcepath="D:/apache/javax.mail-1.6.2-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/javax.mail-api-1.6.2.jar" sourcepath="D:/apache/javax.mail-api-1.6.2-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/commons-math3-3.6.1.jar" sourcepath="D:/apache/commons-math3-3.6.1-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/jackson-dataformat-xml-2.10.1.jar" sourcepath="D:/apache/jackson-dataformat-xml-2.10.1-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/woodstox-core-asl-4.4.1.jar" sourcepath="D:/apache/woodstox-core-asl-4.4.1-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/stax2-api-4.2.jar" sourcepath="D:/apache/stax2-api-4.2-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/jackson-module-jaxb-annotations-2.11.2.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/fastjson-1.2.74.jar" sourcepath="D:/apache/fastjson-1.2.74-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/jackson-datatype-jsr310-2.11.1.jar" sourcepath="D:/apache/jackson-datatype-jsr310-2.11.1-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/guava-18.0.jar" sourcepath="D:/apache/guava-18.0-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/lettuce-core-5.1.8.RELEASE.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/pebble-3.1.2.jar" sourcepath="D:/apache/pebble-3.1.2-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/HikariCP-3.3.1.jar" sourcepath="D:/apache/HikariCP-3.3.1-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/hsqldb-2.5.0.jar" sourcepath="D:/apache/hsqldb-2.5.0-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/javax.annotation-api-1.3.2.jar" sourcepath="D:/apache/javax.annotation-api-1.3.2-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/hibernate-core-5.4.2.Final.jar" sourcepath="D:/apache/hibernate-core-5.4.2.Final-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/javax.persistence-api-2.2.jar" sourcepath="D:/apache/javax.persistence-api-2.2-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/jboss-logging-3.4.1.Final.jar" sourcepath="D:/apache/jboss-logging-3.4.1.Final-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/geronimo-jta_1.1_spec-1.1.1.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/byte-buddy-1.10.6.jar" sourcepath="D:/apache/byte-buddy-1.10.6-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/hibernate-commons-annotations-5.1.1.Final.jar" sourcepath="D:/apache/hibernate-commons-annotations-5.1.1.Final-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/classmate-1.5.1.jar" sourcepath="D:/apache/classmate-1.5.1-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/antlr-2.7.7.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/pebble-spring5-3.1.3.jar" sourcepath="D:/apache/pebble-spring5-3.1.3-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/spring-websocket-5.2.7.RELEASE.jar" sourcepath="D:/apache/spring-websocket-5.2.7.RELEASE-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/spring-context-support-5.2.7.RELEASE.jar" sourcepath="D:/apache/spring-context-support-5.2.7.RELEASE-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/artemis-jms-client-2.13.0.jar" sourcepath="D:/apache/artemis-jms-client-2.13.0-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/javax.jms-api-2.0.1.jar" sourcepath="D:/apache/javax.jms-api-2.0.1-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/netty-handler-proxy-4.1.45.Final.jar" sourcepath="D:/apache/netty-handler-proxy-4.1.45.Final-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/spring-jms-5.2.7.RELEASE.jar" sourcepath="D:/apache/spring-jms-5.2.7.RELEASE-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/tomcat-juli-8.5.55.jar" sourcepath="D:/apache/tomcat-juli-8.5.55-sources.jar"/>
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<classpathentry kind="lib" path="WebContent/WEB-INF/lib/thumbnailator-0.4.8.jar" sourcepath="D:/apache/thumbnailator-0.4.8-sources.jar"/>
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<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/>
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<classpathentry kind="con" path="org.eclipse.jst.server.core.container/org.eclipse.jst.server.tomcat.runtimeTarget/Apache Tomcat v8.5"/>
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<classpathentry kind="output" path="WebContent/WEB-INF/classes"/>
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</classpath>

‎.settings/org.eclipse.core.resources.prefs‎

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eclipse.preferences.version=1
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encoding//WebContent/index.jsp=UTF-8
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encoding//WebContent/jsp/demo/encode.jsp=UTF-8
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encoding//WebContent/jsp/demo/lxf.jsp=UTF-8
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encoding//WebContent/session/sessionAddUser.jsp=UTF-8
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encoding//WebContent/session/sessionRemoveUser.jsp=UTF-8
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encoding/<project>=UTF-8
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encoding/README.md=UTF-8

‎.settings/org.eclipse.jdt.core.prefs‎

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eclipse.preferences.version=1
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org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
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org.eclipse.jdt.core.compiler.codegen.methodParameters=do not generate
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org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
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org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
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org.eclipse.jdt.core.compiler.compliance=1.8
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org.eclipse.jdt.core.compiler.debug.lineNumber=generate
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org.eclipse.jdt.core.compiler.debug.localVariable=generate
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org.eclipse.jdt.core.compiler.debug.sourceFile=generate
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org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
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org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
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org.eclipse.jdt.core.compiler.source=1.8

‎src/com/yale/test/io/file/ZipInputStreamDemo.java‎

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* 我们要创建一个ZipInputStream，通常是传入一个FileInputStream作为数据源，然后，循环调用getNextEntry()，直到返回null，表示zip流结束。
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* 一个ZipEntry表示一个压缩文件或目录，如果是压缩文件，我们就用read()方法不断读取，直到返回-1：
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* 下面的代码没有考虑文件的目录结构。如果要实现目录层次结构，new ZipEntry(name)传入的name要用相对路径。
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* java.util.zip.ZipFile$ZipFileInflaterInputStream，赶紧Google发现还是有许多小伙伴碰到相同的问题，例如：Java压缩流GZIPStream导致的内存泄露 。
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*/
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try(ZipOutputStream zip = new ZipOutputStream(new FileOutputStream(""))){
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File[] files = new File("").listFiles();

‎src/com/yale/test/io/file/jar/JarFileDemo.java‎

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* ArrayDecoder源码来这里看
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* https://hg.openjdk.java.net/jdk8u/jdk8u/jdk/file/63cecc0bd71d/src/share/classes/sun/nio/cs/ArrayDecoder.java
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* sun下面的都不在src.zip里
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* java.util.zip.ZipFile$ZipFileInflaterInputStream，赶紧Google发现还是有许多小伙伴碰到相同的问题，例如：Java压缩流GZIPStream导致的内存泄露 。
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*/
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String str = new String("D:\\浙商SVN\\03-开发\\修改说明UTF-8.zip");
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System.out.println(str);

‎src/com/yale/test/io/nio/NioClient.java‎

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而异步IO是指，读写IO时仅发出请求，然后立刻执行后续代码，它的优点是CPU执行效率高，缺点是代码编写复杂。
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Java标准库的包java.io提供了同步IO，而java.nio则是异步IO。上面我们讨论的InputStream、OutputStream、Reader和Writer都是同步IO的抽象类，对应的具体实现类，以文件为例，有FileInputStream、FileOutputStream、FileReader和FileWriter。
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本节我们只讨论Java的同步IO，即输入/输出流的IO模型。
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* https://zhuanlan.zhihu.com/p/23488863 Java NIO浅析 美团技术团队
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* https://blog.csdn.net/u013096088/article/details/78774627#:~:text=DirectBy,%E5%BB%BA%E3%80%81%E4%BD%BF%E7%94%A8%E5%92%8C%E9%94%80%E6%AF%81%E3%80%82 Java NIO学习笔记三（堆外内存之 DirectByteBuffer 详解）
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*/
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public class NioClient {
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public void start(String nickName) throws IOException {

‎src/com/yale/test/io/nio/NioClientHandler.java‎

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import java.util.Iterator;
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import java.util.Set;
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/*
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* https://zhuanlan.zhihu.com/p/23488863 Java NIO浅析 美团技术团队
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* https://blog.csdn.net/u013096088/article/details/78774627#:~:text=DirectBy,%E5%BB%BA%E3%80%81%E4%BD%BF%E7%94%A8%E5%92%8C%E9%94%80%E6%AF%81%E3%80%82 Java NIO学习笔记三（堆外内存之 DirectByteBuffer 详解）
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*/
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public class NioClientHandler implements Runnable{
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private Selector selector;

‎src/com/yale/test/io/nio/NioServer.java‎

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* 麻烦:NIO类库和API繁杂
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* 心累:可靠性能力补齐,工作量和难度都非常大
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* 有坑:Selector空轮询,导致CPU100%
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* https://zhuanlan.zhihu.com/p/23488863 Java NIO浅析 美团技术团队
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* https://blog.csdn.net/u013096088/article/details/78774627#:~:text=DirectBy,%E5%BB%BA%E3%80%81%E4%BD%BF%E7%94%A8%E5%92%8C%E9%94%80%E6%AF%81%E3%80%82 Java NIO学习笔记三（堆外内存之 DirectByteBuffer 详解）
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* https://cloud.tencent.com/developer/article/1129904 今咱们来聊聊JVM 堆外内存泄露的BUG是如何查找的
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* https://club.perfma.com/article/1835499?from=groupmessage#/article/1835499?from=groupmessage
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* 难道是linux glibc 中经典的 64M 内存问题?一次 Java 进程 OOM 的排查分析（glibc 篇） https://club.perfma.com/article/1709425?last=1714757&type=parent#/article/1709425?last=1714757&type=parent
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* JAVA堆外内存排查小结 https://zhuanlan.zhihu.com/p/60976273
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* https://developer.aliyun.com/article/657160 一次堆外内存泄露的排查过程
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* Linux中使用gdb dump内存 https://blog.csdn.net/qq_36119192/article/details/96474833
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* netty 堆外内存泄露排查盛宴 https://mp.weixin.qq.com/s/fxx_AxH2mbtsr5BgdZ6uFA https://github.com/mrniko/netty-socketio
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* @author dell
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*/
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public class NioServer {

‎src/com/yale/test/java/demo/pro/ProtectedTest.java‎

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* private 设定给大部分的实例变量,以及不想开发给外部程序调用的方法.
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*/
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public class ProtectedTest{
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private float value;
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public static void main(String[] args) {
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SubPersonDemo spd = new SubPersonDemo("test", 10, 99);
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//int sc = spd.score;score是对象属性,只能在子类的对象方法里面使用
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//sc.score = 10;//因为在不同包中,这里会报错,只能在子类中使用,
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//sc.staticFile = 20;//因为在不同包中,这里会报错,只能在子类中使用
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}
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public void testPrivate(ProtectedTest pt){
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System.out.println("这里可以直接调用private私有属性" + pt.value);
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}
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}

‎src/com/yale/test/leetcode/ClimStairs.java‎

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* 图解：什么是快速排序？ https://mp.weixin.qq.com/s/xEmtuRnAPoEHGrOBO__b0w
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* https://visualgo.net/zh/bst?slide=1
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* https://visualgo.net/zh/bst?slide=1
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* https://visualgo.net/en 该网站有各种常用算法的可视化演示
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* Redis 设计与实现 »:https://redisbook.readthedocs.io/en/latest/internal-datastruct/skiplist.html
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* LRU缓存算法:https://www.jianshu.com/p/b1ab4a170c3c
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* 极客时间:算法训练营资料

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