SpringBoot项目，打包部署到服务器时，报错：找不到文件路径

以你之姓@ 2022-05-23 13:07 388阅读 0赞

原本代码如下

第一步：获取文件路径

public static String getXmlPath(String type) throws FileNotFoundException, UnknownHostException {
            // 从项目中获取打包config的demo
            File path = new File(ResourceUtils.getURL("classpath:").getPath());
            String absolutePath = path.getAbsolutePath();
            System.out.println(absolutePath);
            if (!path.exists())
                path = new File("");
            System.out.println("path:" + path.getAbsolutePath());
            String pathforpackage = "src" + File.separator + "main" + File.separator + "resources" + File.separator
                    + "configdemo" + File.separator + "configforpackagedevelop.xml";
            String oldPath = "target" + File.separator + "classes";
            if (type == "packagedev") {
                String packagepath = absolutePath.replace(oldPath, pathforpackage);
                return packagepath;
            }
            return "";
        }

第二部：根据文件路径读取文件数据

// Java读取本地文件
    	public static String getLocalXmlfileFile(String path) {
    		
    		File file = new File(path);
    		StringBuilder localStrBulider = new StringBuilder();
    		if (file.isFile() && file.exists()) {
    			try {
    				InputStreamReader inputStreamReader = new InputStreamReader(new FileInputStream(file), "utf-8");// gbk
    				BufferedReader bufferReader = new BufferedReader(inputStreamReader);
    				String lineStr = null;
    				try {
    					while ((lineStr = bufferReader.readLine()) != null) {
    						localStrBulider.append(lineStr + "\r\n");
    					}
    					bufferReader.close();
    					inputStreamReader.close();
    				} catch (IOException e) {
    					// TODO Auto-generated catch block
    					System.out.println("file read error!");
    					e.printStackTrace();
    				}
    			} catch (UnsupportedEncodingException e) {
    				// TODO Auto-generated catch block
    				System.out.println("file catch unsupported encoding!");
    				e.printStackTrace();
    			} catch (FileNotFoundException e) {
    				// TODO Auto-generated catch block
    				System.out.println("file not found!");
    				e.printStackTrace();
    			}
    		} else {
    			System.out.println("file is not a file or file is not existing!");
    
    		}
    		System.out.println("localStrBulider.toString():" + localStrBulider.toString());
    		return localStrBulider.toString();
    	}

修改后如下

public static String getXml(String type) {
            //springboot 中打jar后读取文件，必须用以下方法读取，不然识别不到
            StringBuilder stringBuilder = new StringBuilder();
            stringBuilder.append("classpath:configdemo");
            stringBuilder.append(File.separator);
            if (type == "packagedev") {
                stringBuilder.append("configforpackagedevelop.xml");
            }
            String path = stringBuilder.toString();
            Resource fileRource = new ClassPathResource(path);
            InputStream inputStream = null;
            try {
                inputStream = fileRource.getInputStream();
            } catch (IOException e) {
                e.printStackTrace();
            }
            String result = com.shishike.susie.utility.FileUtil.InputStream2String(inputStream);
            return result;
        }

文件路径如下：