# apm-tutorial-java

**Repository Path**: baihr/apm-tutorial-java

## Basic Information

- **Project Name**: apm-tutorial-java
- **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**: 2025-11-12
- **Last Updated**: 2026-05-06

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# apm-tutorial-java

> 本项目修改自 [apm-tutorial-java-host](https://github.com/DataDog/apm-tutorial-java-host)

## 克隆项目

```bash
mkdir ~/workspace
cd ~/workspace
git clone https://gitee.com/baihr/apm-tutorial-java.git
```

## 部署 OpenJDK11

```bash
cd /tmp
wget https://mirrors.tuna.tsinghua.edu.cn/Adoptium/11/jdk/x64/linux/OpenJDK11U-jdk_x64_linux_hotspot_11.0.29_7.tar.gz

sudo mkdir /usr/java
sudo tar -xzvf OpenJDK11U-jdk_x64_linux_hotspot_11.0.29_7.tar.gz -C /usr/java
```

编辑 `/etc/profile`，设置环境变量：

```bash
export JAVA_HOME=/usr/java/jdk-11.0.29+7
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH
```

执行 `source /etc/profile`，使 profile 文件生效后，执行 `java -version` 验证。

## 运行程序

```bash
cd notes
wget -O dd-java-agent.jar 'https://static.guance.com/dd-image/dd-java-agent.jar'
./scripts/mvn_instrumented_run.sh

cd calendar
wget -O dd-java-agent.jar 'https://static.guance.com/dd-image/dd-java-agent.jar'
./scripts/mvn_instrumented_run.sh
```

## REST APIs

### Calendar Application

```bash
# 返回一个随机日期
# GET /calendar
# {"status":"success","date":"3/22/2022"}
curl "http://localhost:9090/calendar"
```

### Notes Application

```bash
# 返回笔记列表
# GET /notes/
# [{ "id": 0, "description": "Hello, this is a note." }]
curl "http://localhost:8080/notes"

# 新增笔记
# POST /notes
# { "id": 1, "description": "ImANote" }
curl -X POST "http://localhost:8080/notes?desc=ImANote"

# 新增笔记，但是从 Calendar 服务获取时间
# { "id": 2, "description": "HiImANoteWithDate. Message Date: 09/21/2022" }
curl -X POST "http://localhost:8080/notes?desc=ImANoteWithDate&add_date=y"

# 根据 ID 返回笔记
# GET /notes/:id
# { "id": 1, "description": "ImANote" }
curl 'http://localhost:8080/notes/1'

# 更新笔记
# PUT /notes/:id
# { "id": 1, "description": "UpdatedNote" }
curl -X PUT 'http://localhost:8080/notes/1?desc=UpdatedNote'

# 删除笔记
# DELETE /notes/:id
# { "message": "note with id 4 deleted." }
curl -X DELETE 'http://localhost:8080/notes/1'

```