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xfg-dev-tech-guava
xfg-dev-tech-guava
提交 da249b1a 编写于 作者: 小傅哥's avatar 小傅哥 ⛹
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小傅哥，feat：Guava 工具对象使用

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浏览文件 @ da249b1a
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
### IntelliJ IDEA ###
.idea/modules.xml
.idea/jarRepositories.xml
.idea/compiler.xml
.idea/libraries/
*.iws
*.iml
*.ipr
### Eclipse ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/
### VS Code ###
.vscode/
### Mac OS ###
.DS_Store
\ No newline at end of file
pom.xml 0 → 100644
浏览文件 @ da249b1a
<?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>cn.bugstack</groupId>
<artifactId>xfg-dev-tech-guava</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>pom</packaging>
<modules>
<module>xfg-dev-tech-app</module>
<module>xfg-dev-tech-infrastructure</module>
</modules>
<properties>
<java.version>1.8</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.12</version>
<relativePath/>
</parent>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>2.0.28</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.9</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.guava/guava -->
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>32.1.2-jre</version>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<finalName>xfg-dev-tech</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.0</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<encoding>${project.build.sourceEncoding}</encoding>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.5</version>
<configuration>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<!-- 统一设定POM版本信息插件 -->
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>versions-maven-plugin</artifactId>
<version>2.7</version>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>dev</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<profileActive>dev</profileActive>
</properties>
</profile>
<profile>
<id>test</id>
<properties>
<profileActive>test</profileActive>
</properties>
</profile>
<profile>
<id>prod</id>
<properties>
<profileActive>prod</profileActive>
</properties>
</profile>
</profiles>
</project>
\ No newline at end of file
xfg-dev-tech-app/pom.xml 0 → 100644
浏览文件 @ da249b1a
<?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>
<parent>
<groupId>cn.bugstack</groupId>
<artifactId>xfg-dev-tech-guava</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>xfg-dev-tech-app</artifactId>
<packaging>jar</packaging>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
</dependency>
<dependency>
<groupId>cn.bugstack</groupId>
<artifactId>xfg-dev-tech-infrastructure</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
<build>
<finalName>xfg-dev-tech-app</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
<includes>
<include>**/**</include>
</includes>
</resource>
</resources>
<testResources>
<testResource>
<directory>src/test/resources</directory>
<filtering>true</filtering>
<includes>
<include>**/**</include>
</includes>
</testResource>
</testResources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.6</version>
<configuration>
<skipTests>true</skipTests>
<testFailureIgnore>false</testFailureIgnore>
<includes>
<include>**/*Test.java</include>
</includes>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<mainClass>cn.bugstack.xfg.dev.tech.Application</mainClass>
<layout>JAR</layout>
</configuration>
</plugin>
</plugins>
</build>
</project>
\ No newline at end of file
xfg-dev-tech-app/src/main/java/cn/bugstack/xfg/dev/tech/Application.java 0 → 100644
浏览文件 @ da249b1a
package cn.bugstack.xfg.dev.tech;
import org.springframework.beans.factory.annotation.Configurable;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
@Configurable
public class Application {
public static void main(String[] args){
SpringApplication.run(Application.class);
}
}
xfg-dev-tech-app/src/main/java/cn/bugstack/xfg/dev/tech/config/GuavaCacheConfig.java 0 → 100644
浏览文件 @ da249b1a
package cn.bugstack.xfg.dev.tech.config;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import java.util.concurrent.TimeUnit;
@Configuration
public class GuavaCacheConfig {
@Bean(name = "codeCache")
public Cache<String, String> codeCache() {
return CacheBuilder.newBuilder()
.expireAfterWrite(3, TimeUnit.MINUTES)
.build();
}
}
xfg-dev-tech-app/src/main/resources/application-dev.yml 0 → 100644
浏览文件 @ da249b1a
server:
port: 8091
# 日志
logging:
level:
root: info
config: classpath:logback-spring.xml
\ No newline at end of file
xfg-dev-tech-app/src/main/resources/application-prod.yml 0 → 100644
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server:
port: 8091
# 日志
logging:
level:
root: info
config: classpath:logback-spring.xml
\ No newline at end of file
xfg-dev-tech-app/src/main/resources/application-test.yml 0 → 100644
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server:
port: 8091
# 日志
logging:
level:
root: info
config: classpath:logback-spring.xml
\ No newline at end of file
xfg-dev-tech-app/src/main/resources/application.yml 0 → 100644
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spring:
config:
name: xfg-dev-tech
profiles:
active: dev
xfg-dev-tech-app/src/main/resources/logback-spring.xml 0 → 100644
浏览文件 @ da249b1a
<?xml version="1.0" encoding="UTF-8"?>
<!-- 日志级别从低到高分为TRACE < DEBUG < INFO < WARN < ERROR < FATAL，如果设置为WARN，则低于WARN的信息都不会输出 -->
<configuration scan="true" scanPeriod="10 seconds">
<contextName>logback</contextName>
<!-- name的值是变量的名称，value的值时变量定义的值。通过定义的值会被插入到logger上下文中。定义变量后，可以使“${}”来使用变量。 -->
<springProperty scope="context" name="log.path" source="logging.path"/>
<!-- 日志格式 -->
<conversionRule conversionWord="clr" converterClass="org.springframework.boot.logging.logback.ColorConverter"/>
<conversionRule conversionWord="wex"
converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter"/>
<conversionRule conversionWord="wEx"
converterClass="org.springframework.boot.logging.logback.ExtendedWhitespaceThrowableProxyConverter"/>
<!-- 输出到控制台 -->
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<!-- 此日志appender是为开发使用，只配置最底级别，控制台输出的日志级别是大于或等于此级别的日志信息 -->
<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
<level>info</level>
</filter>
<encoder>
<pattern>%d{yy-MM-dd.HH:mm:ss.SSS} [%-16t] %-5p %-22c{0}%X{ServiceId} -%X{trace-id} %m%n</pattern>
<charset>UTF-8</charset>
</encoder>
</appender>
<!--输出到文件-->
<!-- 时间滚动输出 level为 INFO 日志 -->
<appender name="INFO_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<!-- 正在记录的日志文件的路径及文件名 -->
<file>./data/log/log_info.log</file>
<!--日志文件输出格式-->
<encoder>
<pattern>%d{yy-MM-dd.HH:mm:ss.SSS} [%-16t] %-5p %-22c{0}%X{ServiceId} -%X{trace-id} %m%n</pattern>
<charset>UTF-8</charset>
</encoder>
<!-- 日志记录器的滚动策略，按日期，按大小记录 -->
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- 每天日志归档路径以及格式 -->
<fileNamePattern>./data/log/log-info-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>100MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
<!--日志文件保留天数-->
<maxHistory>15</maxHistory>
<totalSizeCap>10GB</totalSizeCap>
</rollingPolicy>
</appender>
<!-- 时间滚动输出 level为 ERROR 日志 -->
<appender name="ERROR_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<!-- 正在记录的日志文件的路径及文件名 -->
<file>./data/log/log_error.log</file>
<!--日志文件输出格式-->
<encoder>
<pattern>%d{yy-MM-dd.HH:mm:ss.SSS} [%-16t] %-5p %-22c{0}%X{ServiceId} -%X{trace-id} %m%n</pattern>
<charset>UTF-8</charset>
</encoder>
<!-- 日志记录器的滚动策略，按日期，按大小记录 -->
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>./data/log/log-error-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>100MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
<!-- 日志文件保留天数【根据服务器预留，可自行调整】 -->
<maxHistory>7</maxHistory>
<totalSizeCap>5GB</totalSizeCap>
</rollingPolicy>
<!-- WARN 级别及以上 -->
<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
<level>WARN</level>
</filter>
</appender>
<!-- 异步输出 -->
<appender name="ASYNC_FILE_INFO" class="ch.qos.logback.classic.AsyncAppender">
<!-- 队列剩余容量小于discardingThreshold,则会丢弃TRACT、DEBUG、INFO级别的日志;默认值-1,为queueSize的20%;0不丢失日志 -->
<discardingThreshold>0</discardingThreshold>
<!-- 更改默认的队列的深度,该值会影响性能.默认值为256 -->
<queueSize>8192</queueSize>
<!-- neverBlock:true 会丢失日志,但业务性能不受影响 -->
<neverBlock>true</neverBlock>
<!--是否提取调用者数据-->
<includeCallerData>false</includeCallerData>
<appender-ref ref="INFO_FILE"/>
</appender>
<appender name="ASYNC_FILE_ERROR" class="ch.qos.logback.classic.AsyncAppender">
<!-- 队列剩余容量小于discardingThreshold,则会丢弃TRACT、DEBUG、INFO级别的日志;默认值-1,为queueSize的20%;0不丢失日志 -->
<discardingThreshold>0</discardingThreshold>
<!-- 更改默认的队列的深度,该值会影响性能.默认值为256 -->
<queueSize>1024</queueSize>
<!-- neverBlock:true 会丢失日志,但业务性能不受影响 -->
<neverBlock>true</neverBlock>
<!--是否提取调用者数据-->
<includeCallerData>false</includeCallerData>
<appender-ref ref="ERROR_FILE"/>
</appender>
<!-- 开发环境：控制台打印 -->
<springProfile name="dev">
<logger name="com.nmys.view" level="debug"/>
</springProfile>
<root level="info">
<appender-ref ref="CONSOLE"/>
<!-- 异步日志-INFO -->
<appender-ref ref="ASYNC_FILE_INFO"/>
<!-- 异步日志-ERROR -->
<appender-ref ref="ASYNC_FILE_ERROR"/>
</root>
</configuration>
\ No newline at end of file
xfg-dev-tech-app/src/test/java/cn/bugstack/xfg/dev/tech/test/ApiTest.java 0 → 100644
浏览文件 @ da249b1a
package cn.bugstack.xfg.dev.tech.test;
import cn.bugstack.xfg.dev.tech.test.entity.UserEntity;
import com.alibaba.fastjson.JSON;
import com.google.common.base.Joiner;
import com.google.common.base.Objects;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.Weigher;
import com.google.common.collect.ImmutableList;
import com.google.common.hash.BloomFilter;
import com.google.common.hash.Funnels;
import com.google.common.net.InternetDomainName;
import com.google.common.reflect.Invokable;
import com.google.common.util.concurrent.*;
import lombok.extern.slf4j.Slf4j;
import org.junit.Test;
import java.lang.reflect.Method;
import java.nio.charset.Charset;
import java.util.Arrays;
import java.util.Date;
import java.util.Optional;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
/**
* Guava https://github.com/google/guava/wiki
*/
@Slf4j
public class ApiTest {
/**
* 功能：基本工具
* 文档：
*/
@Test
public void test_ObjectCommonMethods() {
UserEntity userEntity = UserEntity.builder()
.amount(100D)
.userName("xfg")
.password("abc000")
.createTime(new Date())
.build();
log.info("测试结果 isEqual: {}", Objects.equal(userEntity, null));
Optional<Integer> possible = Optional.of(5);
log.info("测试结果 isPresent: {} get: {}", possible.isPresent(), possible.get());
}
/**
* 功能：不可变集合
* 文档：https://github.com/google/guava/wiki/ImmutableCollectionsExplained
*/
@Test
public void test_immutable() {
ImmutableList<String> list = ImmutableList.of("a", "b", "c");
}
/**
* 功能：缓存
* 文档：<a href="https://github.com/google/guava/wiki/CachesExplained">CachesExplained</a>
*/
@Test
public void test_cache() {
Cache<String, String> cache = CacheBuilder.newBuilder()
// 最大存储条数，缓存将尝试逐出最近或不经常使用的条目
.maximumSize(10000)
// 可以设定删除时候的权重判断
.weigher((Weigher<String, String>) (x, y) -> x.length() - y.length())
// 有效时间
.expireAfterWrite(3, TimeUnit.SECONDS)
// 记录次数
.recordStats()
.build();
cache.put("xfg", "bugstack.cn");
log.info("测试结果：{}", cache.getIfPresent("xfg"));
cache.invalidate("xfg"); // cache.invalidateAll(); 也可以全部删除
log.info("测试结果：{}", cache.getIfPresent("xfg"));
log.info("测试结果：{}", cache.stats());
}
/**
* 功能：并发回调
* 文档：https://github.com/google/guava/wiki/ListenableFutureExplained
*/
@Test
public void test_ListenableFuture() throws InterruptedException {
CountDownLatch countDownLatch = new CountDownLatch(1);
ListeningExecutorService executorService = MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(10));
ListenableFuture<String> explosion = executorService.submit(() -> "finished");
ExecutorService callBackService = Executors.newFixedThreadPool(1);
Futures.addCallback(explosion, new FutureCallback<String>() {
public void onSuccess(String explosion) {
System.out.println("onSuccess");
countDownLatch.countDown();
}
public void onFailure(Throwable thrown) {
System.out.println("onFailure");
countDownLatch.countDown();
}
}, callBackService);
countDownLatch.await();
}
/**
* 功能：字符串
* 文档：https://github.com/google/guava/wiki/StringsExplained
*/
@Test
public void test_StringsExplained() {
Joiner joiner = Joiner.on("; ").skipNulls();
log.info("测试结果：{}", joiner.join("Harry", null, "Ron", "Hermione"));
log.info("测试结果：{}", Joiner.on(",").join(Arrays.asList(1, 5, 7)));
}
/**
* 功能：域名截取
* 文档：https://github.com/google/guava/wiki/InternetDomainNameExplained
*/
@Test
public void test_InternetDomainName() {
InternetDomainName owner = InternetDomainName.from("mail.google.com").topPrivateDomain();
log.info("测试结果：{}", owner.topPrivateDomain());
}
/**
* 功能：布隆过滤器
* 文档：https://github.com/google/guava/wiki/HashingExplained#bloomfilter
*/
@Test
public void test_BloomFilter() {
BloomFilter<String> bloomFilter = BloomFilter.create(Funnels.stringFunnel(Charset.defaultCharset()),
1000,
0.01);
// 向布隆过滤器中添加元素
bloomFilter.put("apple");
bloomFilter.put("banana");
bloomFilter.put("orange");
// 检查元素是否存在于布隆过滤器中
System.out.println(bloomFilter.mightContain("apple")); // true
System.out.println(bloomFilter.mightContain("banana")); // true
System.out.println(bloomFilter.mightContain("orange")); // true
System.out.println(bloomFilter.mightContain("grape")); // false
// 输出布隆过滤器的统计信息
System.out.println("Expected FPP: " + bloomFilter.expectedFpp());
System.out.println("Number of Inserted Elements: " + bloomFilter.approximateElementCount());
}
/**
* 功能：反射
* 文档：https://github.com/google/guava/wiki/ReflectionExplained
*/
@Test
public void test_Invokable() throws NoSuchMethodException {
Method method = UserEntity.class.getMethod("getUserName");
Invokable<?, ?> invokable = Invokable.from(method);
log.info("测试结果 - 方法名称：{}", invokable.getName());
log.info("测试结果 - 参数类型：{}", JSON.toJSONString(invokable.getTypeParameters()));
log.info("测试结果 - 静态判断：{}", invokable.isStatic());
// !(Modifier.isFinal(method.getModifiers()) || Modifiers.isPrivate(method.getModifiers()) || Modifiers.isStatic(method.getModifiers()) || Modifiers.isFinal(method.getDeclaringClass().getModifiers()))
log.info("测试结果 - isOverridable：{}", invokable.isOverridable());
}
}
xfg-dev-tech-app/src/test/java/cn/bugstack/xfg/dev/tech/test/entity/UserEntity.java 0 → 100644
浏览文件 @ da249b1a
package cn.bugstack.xfg.dev.tech.test.entity;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.util.Date;
@Data
@Builder
@AllArgsConstructor
@NoArgsConstructor
public class UserEntity {
private String userName;
private String password;
private Double amount;
private Date createTime;
}
xfg-dev-tech-infrastructure/pom.xml 0 → 100644
浏览文件 @ da249b1a
<?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>
<parent>
<groupId>cn.bugstack</groupId>
<artifactId>xfg-dev-tech-guava</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>xfg-dev-tech-infrastructure</artifactId>
<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
</dependencies>
<build>
<finalName>xfg-dev-tech-infrastructure</finalName>
<plugins>
<!-- 编译plugin -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<compilerVersion>${java.version}</compilerVersion>
</configuration>
</plugin>
</plugins>
</build>
</project>
\ No newline at end of file
xfg-dev-tech-infrastructure/src/main/java/cn/bugstack/xfg/dev/tech/infrastructure/cache/GuavaCache.java 0 → 100644
浏览文件 @ da249b1a
package cn.bugstack.xfg.dev.tech.infrastructure.cache;
public class GuavaCache {
}
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