Browse Source

Hystrix 熔断器

王智勇 5 years ago
commit
bd0074c917

+ 25 - 0
.gitignore

@@ -0,0 +1,25 @@
+/target/
+!.mvn/wrapper/maven-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/build/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/

BIN
.mvn/wrapper/maven-wrapper.jar


+ 1 - 0
.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1 @@
+distributionUrl=https://repo1.maven.org/maven2/org/apache/maven/apache-maven/3.5.3/apache-maven-3.5.3-bin.zip

+ 12 - 0
README.md

@@ -0,0 +1,12 @@
+##### mvnw 
+> Maven Wrapper/Maven 保持构建工具版本一直的工具
+
+**获取最新版本maven**
+```
+mvn -N io.takari:maven:wrapper 
+```
+**获取指定版本maven**
+```
+mvn -N io.takari:maven:wrapper -Dmaven=3.3.9
+```
+##### Hystrix 加载方式

+ 196 - 0
mvnw

@@ -0,0 +1,196 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+# ----------------------------------------------------------------------------
+# Maven2 Start Up Batch script
+#
+# Required ENV vars:
+# ------------------
+#   JAVA_HOME - location of a JDK home dir
+#
+# Optional ENV vars
+# -----------------
+#   M2_HOME - location of maven2's installed home dir
+#   MAVEN_OPTS - parameters passed to the Java VM when running Maven
+#     e.g. to debug Maven itself, use
+#       set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+#   MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+# ----------------------------------------------------------------------------
+if [ -z "$MAVEN_SKIP_RC" ] ; then
+if [ -f /etc/mavenrc ] ; then
+. /etc/mavenrc
+fi
+if [ -f "$HOME/.mavenrc" ] ; then
+. "$HOME/.mavenrc"
+fi
+fi
+# OS specific support.  $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+mingw=false
+case "`uname`" in
+CYGWIN*) cygwin=true ;;
+MINGW*) mingw=true;;
+Darwin*) darwin=true
+# Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
+# See https://developer.apple.com/library/mac/qa/qa1170/_index.html
+if [ -z "$JAVA_HOME" ]; then
+if [ -x "/usr/libexec/java_home" ]; then
+export JAVA_HOME="`/usr/libexec/java_home`"
+else
+export JAVA_HOME="/Library/Java/Home"
+fi
+fi
+;;
+esac
+if [ -z "$JAVA_HOME" ] ; then
+if [ -r /etc/gentoo-release ] ; then
+JAVA_HOME=`java-config --jre-home`
+fi
+fi
+if [ -z "$M2_HOME" ] ; then
+## resolve links - $0 may be a link to maven's home
+PRG="$0"
+# need this for relative symlinks
+while [ -h "$PRG" ] ; do
+ls=`ls -ld "$PRG"`
+link=`expr "$ls" : '.*-> \(.*\)$'`
+if expr "$link" : '/.*' > /dev/null; then
+PRG="$link"
+else
+PRG="`dirname "$PRG"`/$link"
+fi
+done
+saveddir=`pwd`
+M2_HOME=`dirname "$PRG"`/..
+# make it fully qualified
+M2_HOME=`cd "$M2_HOME" && pwd`
+cd "$saveddir"
+# echo Using m2 at $M2_HOME
+fi
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+[ -n "$M2_HOME" ] &&
+M2_HOME=`cygpath --unix "$M2_HOME"`
+[ -n "$JAVA_HOME" ] &&
+JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+[ -n "$CLASSPATH" ] &&
+CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+fi
+# For Migwn, ensure paths are in UNIX format before anything is touched
+if $mingw ; then
+[ -n "$M2_HOME" ] &&
+M2_HOME="`(cd "$M2_HOME"; pwd)`"
+[ -n "$JAVA_HOME" ] &&
+JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
+# TODO classpath?
+fi
+if [ -z "$JAVA_HOME" ]; then
+javaExecutable="`which javac`"
+if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
+# readlink(1) is not available as standard on Solaris 10.
+readLink=`which readlink`
+if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
+if $darwin ; then
+javaHome="`dirname \"$javaExecutable\"`"
+javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
+else
+javaExecutable="`readlink -f \"$javaExecutable\"`"
+fi
+javaHome="`dirname \"$javaExecutable\"`"
+javaHome=`expr "$javaHome" : '\(.*\)/bin'`
+JAVA_HOME="$javaHome"
+export JAVA_HOME
+fi
+fi
+fi
+if [ -z "$JAVACMD" ] ; then
+if [ -n "$JAVA_HOME"  ] ; then
+if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+# IBM's JDK on AIX uses strange locations for the executables
+JAVACMD="$JAVA_HOME/jre/sh/java"
+else
+JAVACMD="$JAVA_HOME/bin/java"
+fi
+else
+JAVACMD="`which java`"
+fi
+fi
+if [ ! -x "$JAVACMD" ] ; then
+echo "Error: JAVA_HOME is not defined correctly." >&2
+echo "  We cannot execute $JAVACMD" >&2
+exit 1
+fi
+if [ -z "$JAVA_HOME" ] ; then
+echo "Warning: JAVA_HOME environment variable is not set."
+fi
+CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
+# traverses directory structure from process work directory to filesystem root
+# first directory with .mvn subdirectory is considered project base directory
+find_maven_basedir() {
+if [ -z "$1" ]
+then
+echo "Path not specified to find_maven_basedir"
+return 1
+fi
+basedir="$1"
+wdir="$1"
+while [ "$wdir" != '/' ] ; do
+if [ -d "$wdir"/.mvn ] ; then
+basedir=$wdir
+break
+fi
+# workaround for JBEAP-8937 (on Solaris 10/Sparc)
+if [ -d "${wdir}" ]; then
+wdir=`cd "$wdir/.."; pwd`
+fi
+# end of workaround
+done
+echo "${basedir}"
+}
+# concatenates all lines of a file
+concat_lines() {
+if [ -f "$1" ]; then
+echo "$(tr -s '\n' ' ' < "$1")"
+fi
+}
+BASE_DIR=`find_maven_basedir "$(pwd)"`
+if [ -z "$BASE_DIR" ]; then
+exit 1;
+fi
+export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
+echo $MAVEN_PROJECTBASEDIR
+MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+[ -n "$M2_HOME" ] &&
+M2_HOME=`cygpath --path --windows "$M2_HOME"`
+[ -n "$JAVA_HOME" ] &&
+JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+[ -n "$CLASSPATH" ] &&
+CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+[ -n "$MAVEN_PROJECTBASEDIR" ] &&
+MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
+fi
+WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+exec "$JAVACMD" \
+  $MAVEN_OPTS \
+  -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
+  "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+  ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

+ 143 - 0
mvnw.cmd

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+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    http://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Maven2 Start Up Batch script
+@REM
+@REM Required ENV vars:
+@REM JAVA_HOME - location of a JDK home dir
+@REM
+@REM Optional ENV vars
+@REM M2_HOME - location of maven2's installed home dir
+@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a key stroke before ending
+@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
+@REM     e.g. to debug Maven itself, use
+@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+@REM ----------------------------------------------------------------------------
+
+@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
+@echo off
+@REM enable echoing my setting MAVEN_BATCH_ECHO to 'on'
+@if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%
+
+@REM set %HOME% to equivalent of $HOME
+if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
+
+@REM Execute a user defined script before this one
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
+@REM check for pre script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
+if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
+:skipRcPre
+
+@setlocal
+
+set ERROR_CODE=0
+
+@REM To isolate internal variables from possible post scripts, we use another setlocal
+@setlocal
+
+@REM ==== START VALIDATION ====
+if not "%JAVA_HOME%" == "" goto OkJHome
+
+echo.
+echo Error: JAVA_HOME not found in your environment. >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+:OkJHome
+if exist "%JAVA_HOME%\bin\java.exe" goto init
+
+echo.
+echo Error: JAVA_HOME is set to an invalid directory. >&2
+echo JAVA_HOME = "%JAVA_HOME%" >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+@REM ==== END VALIDATION ====
+
+:init
+
+@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
+@REM Fallback to current working directory if not found.
+
+set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
+IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
+
+set EXEC_DIR=%CD%
+set WDIR=%EXEC_DIR%
+:findBaseDir
+IF EXIST "%WDIR%"\.mvn goto baseDirFound
+cd ..
+IF "%WDIR%"=="%CD%" goto baseDirNotFound
+set WDIR=%CD%
+goto findBaseDir
+
+:baseDirFound
+set MAVEN_PROJECTBASEDIR=%WDIR%
+cd "%EXEC_DIR%"
+goto endDetectBaseDir
+
+:baseDirNotFound
+set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
+cd "%EXEC_DIR%"
+
+:endDetectBaseDir
+
+IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
+
+@setlocal EnableExtensions EnableDelayedExpansion
+for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
+@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
+
+:endReadAdditionalConfig
+
+SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
+
+set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
+set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+set ERROR_CODE=1
+
+:end
+@endlocal & set ERROR_CODE=%ERROR_CODE%
+
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
+@REM check for post script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
+if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd"
+:skipRcPost
+
+@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
+if "%MAVEN_BATCH_PAUSE%" == "on" pause
+
+if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE%
+
+exit /B %ERROR_CODE%

+ 72 - 0
pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.dzdy</groupId>
+    <artifactId>hystrix</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <packaging>jar</packaging>
+
+    <name>hystrix</name>
+    <description>Hystrix</description>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.0.2.RELEASE</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <java.version>1.8</java.version>
+        <spring-cloud.version>Finchley.RC2</spring-cloud.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId>
+        </dependency>
+    </dependencies>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+    <repositories>
+        <repository>
+            <id>spring-milestones</id>
+            <name>Spring Milestones</name>
+            <url>https://repo.spring.io/milestone</url>
+            <snapshots>
+                <enabled>false</enabled>
+            </snapshots>
+        </repository>
+    </repositories>
+
+
+</project>

+ 14 - 0
src/main/java/com/dzdy/hystrix/HystrixApplication.java

@@ -0,0 +1,14 @@
+package com.dzdy.hystrix;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
+
+@SpringBootApplication
+@EnableCircuitBreaker
+public class HystrixApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(HystrixApplication.class, args);
+    }
+}

+ 0 - 0
src/main/resources/application.properties


+ 16 - 0
src/test/java/com/dzdy/hystrix/HystrixApplicationTests.java

@@ -0,0 +1,16 @@
+package com.dzdy.hystrix;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class HystrixApplicationTests {
+
+    @Test
+    public void contextLoads() {
+    }
+
+}