spring 读取资源文件

来源：互联网发布：《大数据时代》.txt 编辑：程序博客网时间：2024/05/27 00:44

直接读取方式:

public void test() throws IOException{Resource resource = ApplicationContextFactory.getApplicationContext().getResource("classpath:com/springdemo/resource/test.txt");File file = resource.getFile();byte[] buffer =new byte[(int) file.length()];FileInputStream is =new FileInputStream(file);is.read(buffer, 0, buffer.length);is.close();String str = new String(buffer);System.out.println(str); }

通过spring配置方式读取：

package com.springdemo.resource;import org.springframework.core.io.Resource;public class ResourceBean {private Resource resource;public Resource getResource() {return resource;}public void setResource(Resource resource) {this.resource = resource;}}

spring bean配置:

<!-- 可以直接将一个文件路径赋值给Resource类型的resource属性,spring会根据路径自动转换成对应的Resource --><bean id="resourceBean" class="com.springdemo.resource.ResourceBean" ><property name="resource" value="classpath:/com/springdemo/resource/test.txt" ></property></bean>

JUnit测试：

public void test2() throws IOException{ResourceBean bean = (ResourceBean)ServiceLocator.getService("resourceBean");ClassPathResource resource = (ClassPathResource)bean.getResource();File file = resource.getFile();byte[] buffer =new byte[(int) file.length()];FileInputStream is =new FileInputStream(file);is.read(buffer, 0, buffer.length);is.close();String str = new String(buffer);System.out.println(str); }