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  • 文件上传

    1.前端代码:
    1.1表单上传一定要吧表单类型设置为:multipart/form-data, 并且提交方式设置为post

    <form action="${pageContext.request.contextPath}/user/upload" method="post"
    enctype="multipart/form-data">
    
    1.2angularjs上传设置header属性headers:{'Content-Type':undefined},transforRequest属性transformRequest: angular.identity
    
    app.service("uploadService",function($http){
    	
    	this.uploadFile = function(){
    		// 向后台传递数据:
    		var formData = new FormData();
    		// 向formData中添加数据:
    		formData.append("file",file.files[0]);
    		
    		return $http({
    			method:'post',
    			url:'../upload/uploadImg',
    			data:formData,
    			headers:{'Content-Type':undefined} ,// Content-Type : text/html  text/plain
    			transformRequest: angular.identity
    		});
    	}
    	
    });
    

    2.后端controller:
    使用Multipartfile对象接收

    @RequestMapping("/upload")
    @RestController
    public class UploadFileController {
    
        @Value("${FILE_SERVER_URL}")
        private String FILE_SERVER_URL;
    
        @RequestMapping("/uploadImg")
        public StatusResult uploadImg(MultipartFile file) {
            String conf = "classpath:fastDFS/fdfs_client.conf";
            StatusResult statusResult = new StatusResult();
            try {
                FastDFSClient fastDFSClient = new FastDFSClient(conf);
                // 上传至分布式系统,返回路径
                String filePath = fastDFSClient.uploadFile(file.getBytes(), file.getOriginalFilename());
                statusResult.setStatus(true);
                statusResult.setMessage(FILE_SERVER_URL + filePath);
            } catch (Exception e) {
                e.printStackTrace();
                System.out.println("文件上传失败");
                statusResult.setStatus(false);
                statusResult.setMessage("上传失败");
            }
    
            return statusResult;
        }
    }
    

    3.springmvc.xml配置多媒体解析器

    	<!-- 配置多媒体解析器 -->
    	<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
    		<property name="defaultEncoding" value="UTF-8"></property>
    		<!-- 设定文件上传的最大值5MB,5*1024*1024 -->
    		<property name="maxUploadSize" value="5242880"></property>
    	</bean>
    

    4.fastDFS工具类

    package com.itcast.core.utils;
    
    import org.csource.common.NameValuePair;
    import org.csource.fastdfs.ClientGlobal;
    import org.csource.fastdfs.StorageClient1;
    import org.csource.fastdfs.StorageServer;
    import org.csource.fastdfs.TrackerClient;
    import org.csource.fastdfs.TrackerServer;
    
    public class FastDFSClient {
    
    	private TrackerClient trackerClient = null;
    	private TrackerServer trackerServer = null;
    	private StorageServer storageServer = null;
    	private StorageClient1 storageClient = null;
    	
    	public FastDFSClient(String conf) throws Exception {
    		if (conf.contains("classpath:")) {
    			conf = conf.replace("classpath:", this.getClass().getResource("/").getPath());
    		}
    		ClientGlobal.init(conf);
    		trackerClient = new TrackerClient();
    		trackerServer = trackerClient.getConnection();
    		storageServer = null;
    		storageClient = new StorageClient1(trackerServer, storageServer);
    	}
    	
    	/**
    	 * 上传文件方法
    	 * <p>Title: uploadFile</p>
    	 * <p>Description: </p>
    	 * @param fileName 文件全路径
    	 * @param extName 文件扩展名,不包含(.)
    	 * @param metas 文件扩展信息
    	 * @return
    	 * @throws Exception
    	 */
    	public String uploadFile(String fileName, String extName, NameValuePair[] metas) throws Exception {
    		String result = storageClient.upload_file1(fileName, extName, metas);
    		return result;
    	}
    	
    	public String uploadFile(String fileName) throws Exception {
    		return uploadFile(fileName, null, null);
    	}
    	
    	public String uploadFile(String fileName, String extName) throws Exception {
    		return uploadFile(fileName, extName, null);
    	}
    	
    	/**
    	 * 上传文件方法
    	 * <p>Title: uploadFile</p>
    	 * <p>Description: </p>
    	 * @param fileContent 文件的内容,字节数组
    	 * @param extName 文件扩展名
    	 * @param metas 文件扩展信息
    	 * @return
    	 * @throws Exception
    	 */
    	public String uploadFile(byte[] fileContent, String extName, NameValuePair[] metas) throws Exception {
    		
    		String result = storageClient.upload_file1(fileContent, extName, metas);
    		return result;
    	}
    	
    	public String uploadFile(byte[] fileContent) throws Exception {
    		return uploadFile(fileContent, null, null);
    	}
    	
    	public String uploadFile(byte[] fileContent, String extName) throws Exception {
    		return uploadFile(fileContent, extName, null);
    	}
    }
    

    5.fastDFS配置文件

    # connect timeout in seconds
    # default value is 30s
    connect_timeout=30
    
    # network timeout in seconds
    # default value is 30s
    network_timeout=60
    
    # the base path to store log files
    base_path=/home/fastdfs
    
    # tracker_server can ocur more than once, and tracker_server format is
    #  "host:port", host can be hostname or ip address
    tracker_server=192.168.200.128:22122
    
    #standard log level as syslog, case insensitive, value list:
    ### emerg for emergency
    ### alert
    ### crit for critical
    ### error
    ### warn for warning
    ### notice
    ### info
    ### debug
    log_level=info
    
    # if use connection pool
    # default value is false
    # since V4.05
    use_connection_pool = false
    
    # connections whose the idle time exceeds this time will be closed
    # unit: second
    # default value is 3600
    # since V4.05
    connection_pool_max_idle_time = 3600
    
    # if load FastDFS parameters from tracker server
    # since V4.05
    # default value is false
    load_fdfs_parameters_from_tracker=false
    
    # if use storage ID instead of IP address
    # same as tracker.conf
    # valid only when load_fdfs_parameters_from_tracker is false
    # default value is false
    # since V4.05
    use_storage_id = false
    
    # specify storage ids filename, can use relative or absolute path
    # same as tracker.conf
    # valid only when load_fdfs_parameters_from_tracker is false
    # since V4.05
    storage_ids_filename = storage_ids.conf
    
    
    #HTTP settings
    http.tracker_server_port=80
    
    #use "#include" directive to include HTTP other settiongs
    ##include http.conf
    
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  • 原文地址:https://www.cnblogs.com/zhz-8919/p/11267110.html
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