java项目部署常见问题_java dloader.path-优快云博客

本文链接：https://blog.youkuaiyun.com/libaowen609/article/details/130305957

文章介绍了如何在SpringBoot项目中将jar包和依赖包分离，通过maven插件实现，并修改启动脚本以加载lib目录下的依赖。同时，配置文件被外置到config目录，便于管理和切换环境。Nginx的配置包括路由到特定服务和web服务，以及集群配置。此外，还提到了使用Redis进行session共享的设置方法。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

一、jar包和依赖包分离

在pom文件中新增：

<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<layout>ZIP</layout>

<includes>
<include>
<groupId>nothing</groupId>
<artifactId>nothing</artifactId>
</include>
</includes>
</configuration>
</plugin>


<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-lib</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>target/lib</outputDirectory>
<excludeTransitive>false</excludeTransitive>
<stripVersion>false</stripVersion>
<includeScope>runtime</includeScope>
</configuration>
</execution>
</executions>
</plugin>

修改启动脚本-增加-Dloader.path=lib


nohup  java -XX:+UseG1GC -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps -XX:+PrintHeapAtGC -Xloggc:./gclog/gc.log  -Xms3g -Xmx3g -jar -Dloader.path=lib -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5219 opera-system.jar > default.log 2>&1 &
~

二、配置文件外置

java -jar 启动的时候会优先读取config目录下的配置文、可以把配置文件外置到config目录下、可以通过spring.profiles.active:dev 读取特定文件

三、nginx配置

3.1 路由到特定服务

在配置文件中加如下代码

    location /ds {
        proxy_pass http://172.16.102.11:18088;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_http_version 1.1;
    }

3.2 路由特定web 服务

  location /siling_gzxd_face/ {
        alias /u01/isi/gzdx_face/;
    }

3.3集群配置

upstream dsServer {
server 172.16.101.31:18091;
server 172.16.101.33:18090;
}

location /ds {
proxy_pass http://dsServer;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_http_version 1.1;
}

四、session共享

1、在pom文件中引入

<dependency>
    <groupId>org.springframework.session</groupId>
    <artifactId>spring-session-data-redis</artifactId>
</dependency>

2、在启动类上添加注解

@EnableRedisHttpSession(redisNamespace = "ds_system_v2:session")

五、涉及的到常见linux命令

查看端口号: lsof -i: 18090

[isi@meixuan-33 dqgz-system]$ lsof -i:18090
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
java 20633 isi 285u IPv6 83827872 0t0 TCP *:18090 (LISTEN)

对 jar 解压：jar -xvf dqgz-system.jar

springboot 项目jar包解压后、修改配置文件后、在不依赖开发工具的情况下、重新压缩jar包、命令是：jar -cvfM0 xxx.jar .