实战maven私有仓库三部曲之二:上传到私有仓库

栏目: Java · 发布时间: 6年前

内容简介:实战maven私有仓库三部曲之二:上传到私有仓库

在上一章 《实战maven私有仓库三部曲之一:搭建和使用》 我们搭建了maven私有仓库,并体验了私有仓库缓存jar包的能力,避免了局域网内开发人员去远程中央仓库下载的痛苦等待,本章我们再来体验私有仓库的另一个功能:保存二方库;

原文地址: http://blog.csdn.net/boling_cavalry/article/details/79070744

使用场景

  • mvndemoserver是个web应用,提供http接口getuserinfo,返回用户信息;
  • mvnDemoClient是个 java 应用,调用mvndemoserver的getuserinfo接口查用户信息;
  • 用户信息对应的java类:UserInfo.java,代码如下:
public class UserInfo {

    /**
     * 用户名
     */
    private String name;

    /**
     * 用户年龄
     */
    private int age;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }
}
  • mvndemoserver的getuserinfo接口,返回的数据是将UserInfo对象序列化成的json对象;
  • mvnDemoClient收到mvndemoserver返回的json字符串后,反序列化成UserInfo对象;

UserInfo.java放在哪里合适?

mvnDemoClient和mvndemoserver两个应用都要用UserInfo类,所以我们创建一个maven工程:mvnDemoLib,此工程中将UserInfo类做成jar包,放到私有maven仓库(这就是二方库了),这样mvnDemoClient和mvndemoserver在各自的pom.xml中依赖mvnDemoLib就都能使用UserInfo类了;

实战步骤梳理

本次实战先在maven私有仓库发布jar包,再在应用中使用jar包,所有的步骤列举如下:

1. 修改私有仓库的配置信息,允许上传jar包;

2. 修改当前电脑的maven配置文件apache-maven-3.3.3\conf\settings.xml;

3. 创建mvnDemoLib工程,里面有UserInfo.java,执行mvn命令打包并上传到maven私有仓库;

4. 创建mvndemoserver工程,pom.xml中添加mvnDemoLib的依赖,开发http服务的controller;

5. 创建mvnDemoClient工程,pom.xml中添加mvnDemoLib的依赖,发起http请求,将得到的响应转成UserInfo对象;

接下来实战每个步骤:

实战源码下载

本次实战创建的三个maven工程,源码的git地址是:git@github.com:zq2599/blog_demos.git,用浏览器访问的地址是: https://github.com/zq2599/blog_demos ,这里面有多个工程,本次用到的工程如下图红框所示:

实战maven私有仓库三部曲之二:上传到私有仓库

修改私有仓库的配置信息,允许上传jar包

  1. 登录nexus,我搭建私有仓库的机器IP是192.168.119.155,所以访问地址是 http://192.168.119.155:8081/nexus ,然后点击右上角的”Log In”登录;
  2. 设置好deploy用户的密码,操作如下图所示:
    实战maven私有仓库三部曲之二:上传到私有仓库
    我这里设置的密码是admin123;
  3. 设置为允许上传release的jar包,操作如下图:
    实战maven私有仓库三部曲之二:上传到私有仓库
  4. 设置为允许上传snapshots的jar包,操作如下图:
    实战maven私有仓库三部曲之二:上传到私有仓库

修改当前电脑的maven配置文件

打开当前电脑的maven配置文件apache-maven-3.3.3\conf\settings.xml,添加如下信息:

1. 找到servers节点,添加如下两个子节点:
<server>   
    <id>bolingcavalry-nexus-releases</id>   
    <username>deployment</username>   
    <password>admin123</password>   
</server>
<server>   
    <id>bolingcavalry-nexus-snapshots</id>   
    <username>deployment</username>   
    <password>admin123</password>   
</server>

以上配置了两个server的用户名和密码信息 ,接下来需要身份验证的时候,都可以通过bolingcavalry-nexus-releases和bolingcavalry-nexus-snapshots这两个id来使用对应的用户名和密码;

2. 找到mirrors节点,添加如下两个子节点:
<mirror>     
    <id>bolingcavalry-nexus-releases</id>     
    <mirrorOf>*</mirrorOf>     
    <url>http://192.168.119.155:8081/nexus/content/groups/public</url>     
</mirror>    
<mirror>     
    <id>bolingcavalry-nexus-snapshots</id>     
    <mirrorOf>*</mirrorOf>     
    <url>http://192.168.119.155:8081/nexus/content/groups/public-snapshots</url>     
</mirror>

以上配置了不同的仓库地址;

3. 找到profile节点下面的repositories节点,添加如下两个子节点:

<repository>  
  <id>bolingcavalry-nexus-releases</id>  
  <url>http://nexus-releases</url>  
  <releases><enabled>true</enabled></releases>  
  <snapshots><enabled>true</enabled></snapshots>
</repository>
<repository>  
  <id>bolingcavalry-nexus-snapshots</id>  
  <url>http://nexus-snapshots</url>  
  <releases><enabled>true</enabled></releases>  
   <snapshots><enabled>true</enabled></snapshots>  
</repository>

以上配置release和snapshots的部署时,使用哪个仓库和server的配置信息;

4. 找到profile节点下面的pluginRepositories节点,添加如下两个子节点:

<pluginRepository>  
    <id>bolingcavalry-nexus-releases</id>  
    <url>http://nexus-releases</url>  
    <releases><enabled>true</enabled></releases>  
    <snapshots><enabled>true</enabled></snapshots>  
</pluginRepository>  
<pluginRepository>  
    <id>bolingcavalry-nexus-snapshots</id>  
    <url>http://nexus-snapshots</url>  
    <releases><enabled>true</enabled></releases>  
    <snapshots><enabled>true</enabled></snapshots>  
</pluginRepository>

以上配置release和snapshots的部署时的插件仓库配置;

至此,本地maven配置就完成了,接下来我们开始创建三个maven工程;

创建mvnDemoLib工程

  1. 创建一个maven工程mvnDemoLib,pom.xml内容如下:
<?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.bolingcavalry</groupId>
    <artifactId>mvndemolib</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>

    <distributionManagement>
        <repository>
            <id>bolingcavalry-nexus-releases</id>
            <name>Nexus Release Repository</name>
            <url>http://192.168.119.155:8081/nexus/content/repositories/releases</url>
        </repository>
        <snapshotRepository>
            <id>bolingcavalry-nexus-snapshots</id>
            <name>Nexus Snapshot Repository</name>
            <url>http://192.168.119.155:8081/nexus/content/repositories/snapshots</url>
        </snapshotRepository>
    </distributionManagement>

</project>

如上所示,mvnDemoLib是个普通的java工程,repository和snapshotRepository定义了deploy的时候用到的服务器信息,id和我们前面在maven配置信息中增加的id一致;

2. 工程的源码只有一个文件:UserInfo.java;

3. 在pom.xml所在文件夹下执行命令:

mvn clean deploy -U

看到类似如下的输出信息:

.....
http://192.168.119.155:8081/nexus/content/repositories/snapshots/com/bolingcavalry/mvndemolib/1.0-SNAPSHOT/mvndemolib-1.0-20180119.044938-1.jar
Uploaded: http://192.168.119.155:8081/nexus/content/repositories/snapshots/com/bolingcavalry/mvndemolib/1.0-SNAPSHOT/mvndemolib-1.0-20180119.044938-1.jar (3 KB at 30.4 KB/sec)
Uploading: http://192.168.119.155:8081/nexus/content/repositories/snapshots/com/bolingcavalry/mvndemolib/1.0-SNAPSHOT/mvndemolib-1.0-20180119.044938-1.pom
Uploaded: http://192.168.119.155:8081/nexus/content/repositories/snapshots/com/bolingcavalry/mvndemolib/1.0-SNAPSHOT/mvndemolib-1.0-20180119.044938-1.pom (1000 B at 17.4 KB/sec)
Downloading: http://192.168.119.155:8081/nexus/content/repositories/snapshots/com/bolingcavalry/mvndemolib/maven-metadata.xml
Uploading: http://192.168.119.155:8081/nexus/content/repositories/snapshots/com/bolingcavalry/mvndemolib/1.0-SNAPSHOT/maven-metadata.xml
Uploaded: http://192.168.119.155:8081/nexus/content/repositories/snapshots/com/bolingcavalry/mvndemolib/1.0-SNAPSHOT/maven-metadata.xml (771 B at 17.1 KB/sec)
Uploading: http://192.168.119.155:8081/nexus/content/repositories/snapshots/com/bolingcavalry/mvndemolib/maven-metadata.xml
Uploaded: http://192.168.119.155:8081/nexus/content/repositories/snapshots/com/bolingcavalry/mvndemolib/maven-metadata.xml (285 B at 9.6 KB/sec)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 28.919 s
[INFO] Finished at: 2018-01-19T12:49:38+08:00
[INFO] Final Memory: 18M/211M
[INFO] ------------------------------------------------------------------------

如果提示失败,请看具体的错误码,我之前由于在settings.xml中将密码填写错误,导致此处返回的错误码为401;

4. 在nexus的网页上已经可以上传成功的jar包了,如下图:

实战maven私有仓库三部曲之二:上传到私有仓库

至此,我们上传二方库到maven私有仓库的操作已经完成,使用私有仓库的开发和构建环境都可以使用这个二方库了,接下来试试如何在工程中使用此二方库;

创建mvndemoserver工程

  • 创建一个springboot的web工程mvndemoserver,里面有个controller,提供一个http接口服务,pom.xml中添加二方库的依赖,如下:
<dependency>
    <groupId>com.bolingcavalry</groupId>
    <artifactId>mvndemolib</artifactId>
    <version>1.0-SNAPSHOT</version>
</dependency>
  • 创建一个controller,提供http服务,会用到UserInfo类,代码如下:
@RequestMapping(value = "/getuserinfo/{name}", method = RequestMethod.GET)
@ResponseBody
public UserInfo getuserinfo(@PathVariable("name") final String name) {
    UserInfo userInfo = new UserInfo();
    userInfo.setName(name);
    userInfo.setAge(name.length());
    return userInfo;
}

服务启动后,在浏览器输入地址: http://localhost:8080/getuserinfo/tom ,可以看到以下json返回:

实战maven私有仓库三部曲之二:上传到私有仓库

创建mvnDemoClient工程

  • 我们再创建mvnDemoClient工程,访问 http://localhost:8080/getuserinfo/tom ,将取得的json转成UserInfo对象;
  • mvnDemoClinet工程的pom.xml如下,除了mvndemolib,还依赖了httpclient和fastjson:
<?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.bolingcavalry</groupId>
    <artifactId>mvnDemoClient</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>com.bolingcavalry</groupId>
            <artifactId>mvndemolib</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.3</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.23</version>
        </dependency>
    </dependencies>

</project>
  • 发起http请求,将字符串转成UserInfo对象的代码如下:
public static void main(String[] args) throws Exception{
        CloseableHttpClient httpclient = HttpClientBuilder.create().build();
        HttpGet httpGet = new HttpGet("http://localhost:8080/getuserinfo/jerry");
        //response
        HttpResponse response = httpclient.execute(httpGet);
        HttpEntity entity = response.getEntity();
        //收到原始的响应
        String rawStr = EntityUtils.toString(entity,"UTF-8");
        //打印原始的字符串
        System.out.println("raw string : " + rawStr);
        //将字符串转成UserInfo对象
        UserInfo userInfo = JSONObject.parseObject(rawStr, UserInfo.class);
        System.out.println("userName : " + userInfo.getName() + ", userAge : " + userInfo.getAge());
    }
  • 直接运行这个类,得到的结果如下:
raw string : {"name":"jerry","age":5}
userName : jerry, userAge : 5

以上就是将二方库工程上传到maven私有仓库、并在其他工程中使用此二方库的全部过程,希望能对您的开发有所帮助,接下来的实战,我们将在 Docker 下简单快捷的完成maven仓库的搭建;


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