编译运行

Redis

下载解压

查看配置

1	redis-server.exe redis.windows.conf

配置 $\text {redis IP}$ 地址及端口号

1	redis.hosts = 127.0.0.1:6379

项目下载

项目编译

1	mvn package -DskipTests=true

项目运行

1	.\runtest.bat

出现报错，缺少相关依赖（J2Cache\core\pom.xml）

下面是更新后的pom.xml(j2cahce-core)文件：增加commons-pool2的依赖项。

<dependency>                              
    <groupId>org.apache.commons</groupId> 
    <artifactId>commons-pool2</artifactId>
    <version>2.11.1</version>             
</dependency>

重新加载：

运行测试：

升级改造

JDK

$\text {JDK8} \Rightarrow \text {JDK17}$

下面是更新后的pom.xml(j2cahce)文件：需要在<build>元素内的<plugins>部分中添加maven-compiler-plugin插件配置，同时修改<properties>元素中的project.build.sourceEncoding属性。

<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>net.oschina.j2cache</groupId>
    <artifactId>j2cache</artifactId>
    <version>2.8.0-release</version>
    <packaging>pom</packaging>

    <name>j2cache</name>
    <description>J2Cache is a 2 level Cache system, Using ehcache + redis</description>
    <url>https://gitee.com/ld/J2Cache</url>

    <licenses>
        <license>
            <name>The Apache Software License, Version 2.0</name>
            <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
        </license>
    </licenses>

    <!-- 省略其他配置 -->

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <!-- 更新Java版本为17 -->
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
    </properties>

    <build>
        <!-- 省略其他构建配置 -->
        <!-- 更新maven-compiler-plugin插件的配置 -->
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>${maven.compiler.source}</source>           
					<target>${maven.compiler.target}</target>           
					<encoding>${project.build.sourceEncoding}</encoding>
                </configuration>
            </plugin>
            <!-- 省略其他插件配置 -->
        </plugins>
    </build>

    <!-- 省略其他配置 -->

</project>

构建项目时，显示无法解析符号 ‘Generated’

原因是在 $\text {Java 11}$ 中引入 $\text {JEP 320: Remove the Java EE and CORBA Modules}$ 提案，移除了 $\text {Java EE and CORBA}$ 的模块，如果项目中用到需要手动引入。（代码中用到了 javax.annotation.* 下的包）

下面是更新后的pom.xml(j2cahce-hibernate5,j2cahce-hibernate4)文件：增加javax.annotation的依赖项。

<dependency>
    <groupId>javax.annotation</groupId>
    <artifactId>javax.annotation-api</artifactId>
    <version>1.3.2</version>
</dependency>

Fastjson

fastjson 2.0.41发布

下面是更新后的pom.xml(j2cahce-core)文件：更新fastjson的依赖项。

<dependency>                                    
    <groupId>com.alibaba.fastjson2</groupId>    
    <artifactId>fastjson2</artifactId>          
    <version>2.0.41</version>                   
</dependency>                                   
                                                
<dependency>                                    
    <groupId>com.alibaba.fastjson2</groupId>    
    <artifactId>fastjson2-extension</artifactId>
    <version>2.0.41</version>                   
</dependency>

提示报错：

[4.3. 常见的类扩展升级映射](https://github.com/alibaba/fastjson2/wiki/fastjson_1_upgrade_cn#43-常见的类扩展升级映射)

fastjson1	fastjson2
com.alibaba.fastjson.parser.ParserConfig	com.alibaba.fastjson2.reader.ObjectReaderProvider
com.alibaba.fastjson.parser.deserializer.ExtraProcessor	com.alibaba.fastjson2.filter.ExtraProcessor
com.alibaba.fastjson.parser.deserializer.ObjectDeserializer	com.alibaba.fastjson2.reader.ObjectReader
com.alibaba.fastjson.serializer.AfterFilter	com.alibaba.fastjson2.filter.AfterFilter
com.alibaba.fastjson.serializer.BeforeFilter	com.alibaba.fastjson2.filter.BeforeFilter
com.alibaba.fastjson.serializer.ContextValueFilter	com.alibaba.fastjson2.filter.ContextValueFilter
com.alibaba.fastjson.serializer.LabelFilter	com.alibaba.fastjson2.filter.LabelFilter
com.alibaba.fastjson.serializer.NameFilter	com.alibaba.fastjson2.filter.NameFilter
com.alibaba.fastjson.serializer.PascalNameFilter	com.alibaba.fastjson2.filter.PascalNameFilter
com.alibaba.fastjson.serializer.PropertyFilter	com.alibaba.fastjson2.filter.PropertyFilter
com.alibaba.fastjson.serializer.ObjectSerializer	com.alibaba.fastjson2.writer.ObjectWriter
com.alibaba.fastjson.serializer.SerializeConfig	com.alibaba.fastjson2.writer.ObjectWriterProvider
com.alibaba.fastjson.serializer.ToStringSerializer	com.alibaba.fastjson2.writer.ObjectWriterImplToString
com.alibaba.fastjson.serializer.ValueFilter	com.alibaba.fastjson2.filter.ValueFilter
com.alibaba.fastjson.serializer.SerializerFeature	com.alibaba.fastjson2.JSONReader.Feature
com.alibaba.fastjson.parser.Feature	com.alibaba.fastjson2.JSONWriter.Feature

进行原有方法的单元测试：运行/调试配置中加入：VM 参数

--add-opens java.base/java.lang=ALL-UNNAMED 
--add-opens java.base/java.math=ALL-UNNAMED 
--add-opens java.base/java.net=ALL-UNNAMED 
--add-opens java.base/java.text=ALL-UNNAMED 
--add-opens java.base/java.util=ALL-UNNAMED 
--add-opens java.base/java.util.concurrent=ALL-UNNAMED

[报错提示](https://gitee.com/ld/J2Cache/issues/I4U0BO)

1	--add-opens java.base/java.math=ALL-UNNAMED

需要修改的地方：

对应 $\text {API}$ 进行修改。

Redis

需要修改的文件：

SpringBoot3

拷贝 spring-boot2-starter 模块新命名为 spring-boot3-starter

下面是更新后的pom.xml(spring-boot3-starter)文件：修改spring-boot-dependencies的版本。

1
2
3

<properties>
	<spring-boot-dependencies.version>3.0.0</spring-boot-dependencies.version>
</properties>

下面是更新后的pom.xml(j2cache-core)文件：增加子模块spring-boot3-starter的版本。

<modules>
	<module>core</module>
	<module>modules/hibernate3</module>
	<module>modules/hibernate4</module>
	<module>modules/hibernate5</module>
	<module>modules/spring-boot-starter</module>
	<module>modules/spring-boot2-starter</module>
	<module>modules/spring-boot3-starter</module>
	<module>modules/mybatis</module>
	<module>modules/springcache</module>
	<module>modules/session-manager</module>
</modules>

项目打包成 jar

# 用例测试

新建SpringBoot3项目
添加依赖

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>3.1.5</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.bjtu.cs</groupId>
	<artifactId>demo-j2cache-core-upgrad</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<properties>
		<java.version>17</java.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>net.oschina.j2cache</groupId>
			<artifactId>j2cache-core-upgrade</artifactId>
			<version>2.8.5-release</version>
		</dependency>
		<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>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
				<configuration>
					<excludes>
						<exclude>
							<groupId>org.projectlombok</groupId>
							<artifactId>lombok</artifactId>
						</exclude>
					</excludes>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>

添加配置文件

caffeine.properties

j2cache.properties

可以直接从 j2cache-upgrade\core\resources中复制来

主函数测试

package com.bjtu.cs;

import net.oschina.j2cache.CacheChannel;
import net.oschina.j2cache.J2Cache;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Application {
	public static void main(String[] args) {
		CacheChannel cache = J2Cache.getChannel();
		cache.set("default", "1", "Hello J2Cache");
		System.out.println(cache.get("default", "1"));
		cache.evict("default", "1");
		System.out.println(cache.get("default", "1"));
		cache.close();
	}
}

编译并运行查看结果，观察控制台输出，以及本地 $\text {redis server}$ 记录，成功写入！