# skywalking-demo

**Repository Path**: qkzztx_admin/skywalking-demo

## Basic Information

- **Project Name**: skywalking-demo
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Apache-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2024-01-13
- **Last Updated**: 2024-01-13

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# skywalking demo

官网：
[https://skywalking.apache.org/](https://skywalking.apache.org/)

需要下载：

[https://archive.apache.org/dist/skywalking/8.3.0/](https://archive.apache.org/dist/skywalking/8.3.0/)

Agent,下载后把agent文件复制到某个文件夹，客户端应用运行的时候需要

参考博客:

[https://blog.csdn.net/qq_31279701/article/details/124191651](https://blog.csdn.net/qq_31279701/article/details/124191651)
[https://blog.csdn.net/ltx1472580369/article/details/112572529](https://blog.csdn.net/ltx1472580369/article/details/112572529)


## 镜像

```shell
# 拉取镜像
docker pull elasticsearch:7.6.2
docker pull apache/skywalking-oap-server:8.3.0-es7
docker pull apache/skywalking-ui:8.3.0
```

## 创建 ElasticSearch容器

```shell
docker run --restart=always -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" -e ES_JAVA_OPTS="-Xms512m -Xmx512m" --name='elasticsearch' --cpuset-cpus="1" -m 2G -d elasticsearch:7.6.2
```
验证
[http://localhost:9200](http://localhost:9200)


## 创建OAP容器

```shell
docker run --name oap --restart always -d --restart=always -e TZ=Asia/Shanghai -p 12800:12800 -p 11800:11800 --link elasticsearch:elasticsearch -e SW_STORAGE=elasticsearch7 -e SW_STORAGE_ES_CLUSTER_NODES=elasticsearch:9200 apache/skywalking-oap-server:8.3.0-es7
```

## 创建SkywalkingUI容器

```shell
docker run -d --name skywalking-ui --restart=always -e TZ=Asia/Shanghai -p 8088:8080 --link oap:oap -e SW_OAP_ADDRESS=oap:12800 apache/skywalking-ui:8.3.0
```

验证：
[http://localhost:8088](http://localhost:8088)

## 运行客户端程序

java命令行添加VM参数:

-javaagent:D:\skywalking\skywalking-agent\skywalking-agent.jar -Dskywalking.agent.service_name=skywalking-service -Dskywalking.collector.backend_service=127.0.0.1:11800

例子
```shell
java -javaagent:D:\skywalking\skywalking-agent\skywalking-agent.jar -Dskywalking.agent.service_name=skywalking-service -Dskywalking.collector.backend_service=127.0.0.1:11800 -jar app.jar
```
说明：
- javaagent：skywalking的jar文件位置
- skywalking.agent.service_name=skywalking-service 表示运行的服务名称
- -Dskywalking.collector.backend_service=127.0.0.1:11800 表示skywalking服务端地址

![image/本地agent虚拟机参数.png](./image/本地agent虚拟机参数.png)


## 添加链路追踪

```java
/** 
 * 默认埋点了mvc和mysql对接
 * 自定义埋点：方法上加 @Trace
 * 记录参数和返回信息，在方法上增加@Tag或者@Tags
**/
@ApiOperation("根据ids获取用户信息")
@GetMapping("/getUsersByUserIds")
@Trace
@Tags({@Tag(key = "param1", value = "arg[0]"), @Tag(key = "R", value = "returnedObj")})
public R<List<SysUser>> getUsersByUserIds(@RequestParam @ApiParam(value = "用户ids") Collection<Integer> userIds) {
    return R.ok(sysUserService.listByIds(userIds));
}
```