读取项目文件，获取路径

web项目读取webapp下文件

window下

String classpath = this.getClass().getResource("/").getPath().replaceFirst("/", "");
String url = classpath.replaceAll("WEB-INF/classes/", "");//得到WebAPP目录 
url = url + "/static/dist/img/zwtp1.jpg"

linux下
去掉 replaceFirst("/", “”);

String classpath = this.getClass().getResource("/").getPath();
String url = classpath.replaceAll("WEB-INF/classes/", "");//得到WebAPP目录 
url = url + "/static/dist/img/zwtp1.jpg"

jar项目读取resources下文件

首先pom添加自己的路径

			<resource>
				<directory>src/main/resources/img</directory>
				<filtering>false</filtering>
				<includes>
					<include>*</include>
				</includes>
			</resource>

window下

String imgPath = System.getProperty("user.dir") + "\\src\\main\\resources\\img\\zwtp1.jpg";

linux下

ClassPathResource classPathResource = new ClassPathResource("zwtp1.jpg");
InputStream in=classPathResource.getInputStream();//获取文件流

ClassPathResource 是freemarker的

		<dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.23</version>
        </dependency>