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selonjselonj
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Test spring request bean
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‎.gitignore

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.idea
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*.iml
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out
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build
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.gradle
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gradle

‎build.gradle

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apply plugin: 'java'
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apply plugin: 'idea'
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apply plugin: 'war'
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sourceCompatibility = 1.5
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version = '1.0'
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repositories {
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mavenCentral()
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mavenLocal()
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}
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dependencies {
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def springVersion = "3.2.0.RELEASE"
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compile "org.springframework:spring-webmvc:$springVersion"
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compile "org.springframework:spring-context-support:$springVersion"
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compile 'log4j:log4j:1.2.17'
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testCompile group: 'junit', name: 'junit', version: '4.11'
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testCompile "org.springframework:spring-test:$springVersion"
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providedCompile 'javax.servlet:servlet-api:2.5'
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compile 'org.aspectj:aspectjweaver:1.6.11'
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}
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processResources {
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destinationDir = sourceSets.main.output.classesDir
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}
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processTestResources {
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destinationDir = sourceSets.test.output.classesDir
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}
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idea {
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module {
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downloadSources = false
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downloadJavadoc = false
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excludeDirs += [file('.idea'), file('.gradle'), file('gradle')]
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outputDir = sourceSets.main.output.classesDir
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testOutputDir = sourceSets.test.output.classesDir
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}
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}

‎gradlew

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#!/usr/bin/env bash
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##############################################################################
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##
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## Gradle start up script for UN*X
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##
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##############################################################################
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# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
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DEFAULT_JVM_OPTS=""
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APP_NAME="Gradle"
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APP_BASE_NAME=`basename "$0"`
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# Use the maximum available, or set MAX_FD != -1 to use that value.
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MAX_FD="maximum"
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warn ( ) {
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echo "$*"
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}
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die ( ) {
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echo
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echo "$*"
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echo
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exit 1
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}
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# OS specific support (must be 'true' or 'false').
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cygwin=false
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msys=false
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darwin=false
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case "`uname`" in
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CYGWIN* )
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cygwin=true
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;;
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Darwin* )
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darwin=true
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;;
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MINGW* )
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msys=true
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;;
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esac
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# For Cygwin, ensure paths are in UNIX format before anything is touched.
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if $cygwin ; then
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[ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
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fi
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# Attempt to set APP_HOME
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# Resolve links: $0 may be a link
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PRG="$0"
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# Need this for relative symlinks.
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while [ -h "$PRG" ] ; do
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ls=`ls -ld "$PRG"`
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link=`expr "$ls" : '.*-> \(.*\)$'`
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if expr "$link" : '/.*' > /dev/null; then
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PRG="$link"
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else
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PRG=`dirname "$PRG"`"/$link"
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fi
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done
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SAVED="`pwd`"
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cd "`dirname \"$PRG\"`/" >&-
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APP_HOME="`pwd -P`"
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cd "$SAVED" >&-
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CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
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# Determine the Java command to use to start the JVM.
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if [ -n "$JAVA_HOME" ] ; then
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if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
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# IBM's JDK on AIX uses strange locations for the executables
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JAVACMD="$JAVA_HOME/jre/sh/java"
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else
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JAVACMD="$JAVA_HOME/bin/java"
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fi
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if [ ! -x "$JAVACMD" ] ; then
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die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
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Please set the JAVA_HOME variable in your environment to match the
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location of your Java installation."
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fi
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else
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JAVACMD="java"
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which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
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Please set the JAVA_HOME variable in your environment to match the
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location of your Java installation."
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fi
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# Increase the maximum file descriptors if we can.
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if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
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MAX_FD_LIMIT=`ulimit -H -n`
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if [ $? -eq 0 ] ; then
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if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
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MAX_FD="$MAX_FD_LIMIT"
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fi
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ulimit -n $MAX_FD
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if [ $? -ne 0 ] ; then
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warn "Could not set maximum file descriptor limit: $MAX_FD"
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fi
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else
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warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
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fi
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fi
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# For Darwin, add options to specify how the application appears in the dock
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if $darwin; then
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GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
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fi
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# For Cygwin, switch paths to Windows format before running java
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if $cygwin ; then
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APP_HOME=`cygpath --path --mixed "$APP_HOME"`
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CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
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# We build the pattern for arguments to be converted via cygpath
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ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
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SEP=""
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for dir in $ROOTDIRSRAW ; do
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ROOTDIRS="$ROOTDIRS$SEP$dir"
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SEP="|"
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done
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OURCYGPATTERN="(^($ROOTDIRS))"
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# Add a user-defined pattern to the cygpath arguments
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if [ "$GRADLE_CYGPATTERN" != "" ] ; then
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OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
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fi
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# Now convert the arguments - kludge to limit ourselves to /bin/sh
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i=0
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for arg in "$@" ; do
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CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
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CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
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if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
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eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
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else
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eval `echo args$i`="\"$arg\""
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fi
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i=$((i+1))
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done
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case $i in
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(0) set -- ;;
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(1) set -- "$args0" ;;
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(2) set -- "$args0" "$args1" ;;
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(3) set -- "$args0" "$args1" "$args2" ;;
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(4) set -- "$args0" "$args1" "$args2" "$args3" ;;
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(5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
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(6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
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(7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
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(8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
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(9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
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esac
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fi
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# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
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function splitJvmOpts() {
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JVM_OPTS=("$@")
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}
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eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
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JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
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exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"

‎gradlew.bat

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@if "%DEBUG%" == "" @echo off
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@rem ##########################################################################
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@rem
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@rem Gradle startup script for Windows
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@rem
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@rem ##########################################################################
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@rem Set local scope for the variables with windows NT shell
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if "%OS%"=="Windows_NT" setlocal
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@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
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set DEFAULT_JVM_OPTS=
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set DIRNAME=%~dp0
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if "%DIRNAME%" == "" set DIRNAME=.
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set APP_BASE_NAME=%~n0
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set APP_HOME=%DIRNAME%
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@rem Find java.exe
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if defined JAVA_HOME goto findJavaFromJavaHome
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set JAVA_EXE=java.exe
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%JAVA_EXE% -version >NUL 2>&1
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if "%ERRORLEVEL%" == "0" goto init
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echo.
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echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
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echo.
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echo Please set the JAVA_HOME variable in your environment to match the
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echo location of your Java installation.
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goto fail
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:findJavaFromJavaHome
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set JAVA_HOME=%JAVA_HOME:"=%
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set JAVA_EXE=%JAVA_HOME%/bin/java.exe
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if exist "%JAVA_EXE%" goto init
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echo.
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echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
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echo.
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echo Please set the JAVA_HOME variable in your environment to match the
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echo location of your Java installation.
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goto fail
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:init
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@rem Get command-line arguments, handling Windowz variants
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if not "%OS%" == "Windows_NT" goto win9xME_args
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if "%@eval[2+2]" == "4" goto 4NT_args
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:win9xME_args
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@rem Slurp the command line arguments.
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set CMD_LINE_ARGS=
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set _SKIP=2
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:win9xME_args_slurp
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if "x%~1" == "x" goto execute
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set CMD_LINE_ARGS=%*
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goto execute
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:4NT_args
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@rem Get arguments from the 4NT Shell from JP Software
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set CMD_LINE_ARGS=%$
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:execute
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@rem Setup the command line
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set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
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@rem Execute Gradle
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"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
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:end
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@rem End local scope for the variables with windows NT shell
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if "%ERRORLEVEL%"=="0" goto mainEnd
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:fail
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rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
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rem the _cmd.exe /c_ return code!
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if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
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exit /b 1
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:mainEnd
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if "%OS%"=="Windows_NT" endlocal
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:omega

‎settings.gradle

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rootProject.name = 'spring-webmvc'
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‎src/main/java/org/spring/examples/config/ApplicationConfig.java

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package org.spring.examples.config;
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import org.springframework.context.annotation.ComponentScan;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.web.servlet.config.annotation.EnableWebMvc;
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/**
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* Created by L.x on 15-1-22.
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*/
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@Configuration
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@EnableWebMvc
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@ComponentScan("org.spring.examples.scope")
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public class ApplicationConfig {
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}

‎src/main/java/org/spring/examples/scope/README.md

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# Spring Scoped Bean
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## 注意事项
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- 使用**@Scope("request")**来定义request Bean；
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- 当**Controller**中使用了request Bean时,**Controller**也应该使用**@Scope("request")**来标注该Controller是request作用域,这样Spring会为每个请求创建一个**User**实例；
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- 如果**Controller**未使用**@Scope("request")**标注，每次请求时Spring将只创建一个**User**实例，然后使用Proxy方式注入HttpServletRequest对象；
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- 使用request Bean必须在web.xml根据需要定义**RequestContextListener/RequestContextFilter**
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```xml
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<listener>
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<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
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</listener>
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```

‎src/main/java/org/spring/examples/scope/User.java

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package org.spring.examples.scope;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.context.annotation.EnableAspectJAutoProxy;
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import org.springframework.context.annotation.Scope;
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import org.springframework.stereotype.Component;
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import org.springframework.web.servlet.HandlerMapping;
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import javax.servlet.http.HttpServletRequest;
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import java.util.Map;
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/**
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* Created by L.x on 15-1-22.
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*/
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@Component
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@Scope("prototype")
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@EnableAspectJAutoProxy
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public class User {
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private static Integer ids = 0;
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private final Integer id;
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public User() {
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id = ids + guid();
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}
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private synchronized Integer guid() {
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return ids++;
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}
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@Autowired
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private HttpServletRequest request;
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public String getName() {
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Map<String, String> pathVariables = (Map<String, String>) request.getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE);
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return pathVariables.get("username") + "::" + id;
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}
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}

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