# javaagent_demos

**Repository Path**: tangxqa/javaagent_demos

## Basic Information

- **Project Name**: javaagent_demos
- **Description**: No description available
- **Primary Language**: Java
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-11-15
- **Last Updated**: 2021-11-15

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# javaagent_demos_Steps:
1. 编译agent
```cmd
cd haier
mvn clean package -DskipTests
```

2. 编译demo app
```cmd
cd appplat
mvn clean package -DskipTests
```

3. 执行demo app，请求接口查看结果
```cmd
cd appplat/target
java -jar appplat-0.0.1-SNAPSHOT.jar
curl --location --request GET 'localhost:18080/api/v1/demo/hello'
```
发现此时控制台打印： `================hello world=============`

4. 加上-javaagent参数，重新启动。其中javaagent地址为第一步编译出来的agent地址。
```cmd
cd appplat/target
java -javaagent:/Users/tangxqa/develop/code/java/690/javaagent_demos/haier/target/haier-1.0-SNAPSHOT.jar -jar appplat-0.0.1-SNAPSHOT.jar
```

5. 再次请求，发现控制台打印结果多了两行。
```cmd
curl --location --request GET 'localhost:18080/api/v1/demo/hello'

```

result:
```
Step into: sayHelloWorld, Amazing...!
================hello world=============
Step out: sayHelloWorld, Amazing...!
```