1. 在src/main/resources下新建param.properties
2. 在param.properties文件中添加
mqtt.host=tcp://127.0.0.1:1883
mqtt.username=xxxxxx
mqtt.password=xxxxxxx
3. 在pom.xml中添加
</resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.xml</include>
<include>**/*.properties</include>
</includes>
</resource>
</resources>
4. 在java文件中
try {
Properties prop = new Properties();
String resouces = "param.properties";
InputStream in = Resources.getResourceAsStream(resouces);
prop.load(in);
Iterator<String> it = prop.stringPropertyNames().iterator();
while (it.hasNext()) {
String s = it.next();
if (s.equals("mqtt.host")) {
String s1 = prop.getProperty("mqtt.host");
}else if(s.equals("mqtt.username")) {
String s2 = prop.getProperty("mqtt.username");
}else if(s.equals("mqtt.password")) {
String s3 = prop.getProperty("mqtt.password");
}
}
in.close();
}catch(Exception e) {
System.out.println("Exception:");
e.printStackTrace();
}