SpringMVC整合FastDFS之文件上传详解
一、引入POM依赖
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<groupId>com.wanggroupId>
<artifactId>SpringDemoartifactId>
<version>1.0-SNAPSHOTversion>
<packaging>warpackaging>
<properties>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
<spring.version>4.3.8.RELEASEspring.version>
<commons-fileupload.version>1.3.1commons-fileupload.version>
properties>
<dependencies>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-coreartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aopartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-jdbcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-txartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>6.0.6version>
dependency>
<dependency>
<groupId>org.csource.fastdfsgroupId>
<artifactId>fastdfsartifactId>
<version>1.2version>
dependency>
<dependency>
<groupId>commons-fileuploadgroupId>
<artifactId>commons-fileuploadartifactId>
<version>${commons-fileupload.version}version>
dependency>
<dependency>
<groupId>junitgroupId>
<artifactId>junitartifactId>
<version>4.11version>
<scope>testscope>
dependency>
<dependency>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-log4j12artifactId>
<version>1.7.2version>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>fastjsonartifactId>
<version>1.2.36version>
dependency>
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
<version>1.16.12version>
<scope>providedscope>
dependency>
dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-compiler-pluginartifactId>
<version>3.1version>
<configuration>
<source>1.8source>
<target>1.8target>
<encoding>UTF-8encoding>
<showWarnings>trueshowWarnings>
configuration>
plugin>
<plugin>
<groupId>org.apache.tomcat.mavengroupId>
<artifactId>tomcat7-maven-pluginartifactId>
<version>2.2version>
<configuration>
<port>8080port>
<path>/path>
<uriEncoding>UTF-8uriEncoding>
<server>tomcat7server>
configuration>
plugin>
plugins>
build>
project>
二、配置Web.xml
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="WebApp_ID" version="3.0">
<servlet>
<servlet-name>dispatcherServletservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:application-mvc.xmlparam-value>
init-param>
servlet>
<servlet-mapping>
<servlet-name>dispatcherServletservlet-name>
<url-pattern>/url-pattern>
servlet-mapping>
<filter>
<filter-name>CharacterEncodingFilterfilter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
<init-param>
<param-name>encodingparam-name>
<param-value>UTF-8param-value>
init-param>
filter>
<filter-mapping>
<filter-name>CharacterEncodingFilterfilter-name>
<url-pattern>/*url-pattern>
filter-mapping>
<welcome-file-list>
<welcome-file>/WEB-INF/jsp/index.jspwelcome-file>
welcome-file-list>
web-app>
三、applicationContext-SpringMVC.xml配置
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<context:property-placeholder location="classpath*:*.properties"/>
<context:annotation-config/>
<mvc:annotation-driven>
<mvc:message-converters register-defaults="true">
<bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
<property name="supportedMediaTypes" value="application/json"/>
<property name="features">
<array>
<value>WriteMapNullValuevalue>
<value>WriteDateUseDateFormatvalue>
array>
property>
bean>
mvc:message-converters>
mvc:annotation-driven>
<mvc:default-servlet-handler/>
<mvc:resources mapping="/static/**" location="/WEB-INF/static/"/>
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="defaultEncoding" value="UTF-8">property>
<property name="maxUploadSize" value="5242880">property>
bean>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/jsp/" p:suffix=".jsp"/>
<context:component-scan base-package="com.wang.controller"/>
beans>
四 、application.properties配置（配置文件服务器ip）
FILE_SERVER_URL=192.168.100.21/
五、fdfs_client.conf文件配置（FastDFS核心配置)
# 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
# 配置自己的服务器地址和端口
tracker_server=192.168.100.21:22122
#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
六、日志的配置文件
# Set root category priority to INFO and its only appender to CONSOLE.
#log4j.rootCategory=INFO, CONSOLE debug info warn error fatal
log4j.rootCategory=debug, CONSOLE, LOGFILE
# Set the enterprise logger category to FATAL and its only appender to CONSOLE.
log4j.logger.org.apache.axis.enterprise=FATAL, CONSOLE
# CONSOLE is set to be a ConsoleAppender using a PatternLayout.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n
# LOGFILE is set to be a File appender using a PatternLayout.
log4j.appender.LOGFILE=org.apache.log4j.FileAppender
log4j.appender.LOGFILE.File=d:axis.log
log4j.appender.LOGFILE.Append=true
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n
七、创建文件上传的工具类
package com.wang.common;
import org.csource.common.NameValuePair;
import org.csource.fastdfs.*;
import java.io.BufferedOutputStream;
import java.io.IOException;
/**
* @author Administrator
*/
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
* Title: uploadFile
* Description:
*
* @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 {
return storageClient.upload_file1(fileName, extName, metas);
}
/**
* 上传文件,传fileName
*
* @param fileName 文件的磁盘路径名称 如：D:/image/aaa.jpg
* @return null为失败
*/
public String uploadFile(String fileName) throws Exception {
return uploadFile(fileName, null, null);
}
/**
* @param fileName 文件的磁盘路径名称 如：D:/image/aaa.jpg
* @param extName 文件的扩展名 如 txt jpg等
* @return null为失败
*/
public String uploadFile(String fileName, String extName) throws Exception {
return uploadFile(fileName, extName, null);
}
/**
* 上传文件方法
* Title: uploadFile
* Description:
*
* @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 {
return storageClient.upload_file1(fileContent, extName, metas);
}
/**
* 上传文件
*
* @param fileContent 文件的字节数组
* @return null为失败
* @throws Exception
*/
public String uploadFile(byte[] fileContent) throws Exception {
return uploadFile(fileContent, null, null);
}
/**
* 上传文件
*
* @param fileContent 文件的字节数组
* @param extName 文件的扩展名 如 txt jpg png 等
* @return null为失败
*/
public String uploadFile(byte[] fileContent, String extName) throws Exception {
return uploadFile(fileContent, extName, null);
}
/**
* 文件下载到磁盘
*
* @param path 图片路径
* @param output 输出流 中包含要输出到磁盘的路径
* @return -1失败,0成功
*/
public int download_file(String path, BufferedOutputStream output) {
int result = -1;
try {
byte[] b = storageClient.download_file1(path);
try {
if (b != null) {
output.write(b);
result = 0;
}
} catch (Exception e) {
} //用户可能取消了下载
finally {
if (output != null) {
try {
output.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/**
* 获取文件数组
*
* @param path 文件的路径 如group1/M00/00/00/wKgRsVjtwpSAXGwkAAAweEAzRjw471.jpg
* @return
*/
public byte[] download_bytes(String path) {
byte[] b = null;
try {
b = storageClient.download_file1(path);
} catch (Exception e) {
e.printStackTrace();
}
return b;
}
/**
* 删除文件
*
* @param group 组名 如：group1
* @param storagePath 不带组名的路径名称 如：M00/00/00/wKgRsVjtwpSAXGwkAAAweEAzRjw471.jpg
* @return -1失败,0成功
*/
public Integer delete_file(String group, String storagePath) {
int result = -1;
try {
result = storageClient.delete_file(group, storagePath);
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/**
* @param storagePath 文件的全部路径 如：group1/M00/00/00/wKgRsVjtwpSAXGwkAAAweEAzRjw471.jpg
* @return -1失败,0成功
* @throws IOException
* @throws Exception
*/
public Integer delete_file(String storagePath) {
int result = -1;
try {
result = storageClient.delete_file1(storagePath);
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/**
* 获取远程服务器文件资源信息
*
* @param groupName 文件组名 如：group1
* @param remoteFileName M00/00/00/wKgRsVjtwpSAXGwkAAAweEAzRjw471.jpg
* @return
*/
public FileInfo getFile(String groupName, String remoteFileName) {
try {
return storageClient.get_file_info(groupName, remoteFileName);
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
八、创建文件上传得Controller
package com.wang.controller;
import com.wang.common.FastDFSClient;
import com.wang.user.User;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
/**
* @author:xian
* @data：2020/3/19 0019 周四
*/
@Controller
public class SpringController {
@Value("${FILE_SERVER_URL}")
private String FILE_SERVER_URL;
@RequestMapping("/hello")
public String springDemo() {
return "hello";
}
/**
* 文件上传
*
* @param file 上传文件对象
* @return 文件上传路径
*/
@RequestMapping("/upload")
@ResponseBody
public String upload(MultipartFile file) {
String URL = "上传失败";
//获取文件路径
String path = file.getOriginalFilename();
//获取文件后缀名
String extName = path.substring(path.lastIndexOf(".") + 1);
try {
//读取配置文件
FastDFSClient client = new FastDFSClient("classpath:fdfs_client.conf");
String filePath = client.uploadFile(file.getBytes(), extName);
URL = FILE_SERVER_URL + filePath;
} catch (Exception e) {
e.printStackTrace();
}
return URL;
}
@RequestMapping("/user")
@ResponseBody
public User getUser() {
return new User().setUserName("xian").setPassWord("xian");
}
/**
* 表单数据SpringMVC会自动解析封装成对象
*
* @param user
* @return
*/
@RequestMapping("/postUser")
@ResponseBody
public User postUser(User user) {
return user;
}
}
九、创建上传得JSP页面（此处简单测试）
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>单图片上传</title>
</head>
<body>
<fieldset>
<legend>图片上传</legend>
<h2>只能上传单张10M以下的 PNG、JPG、GIF 格式的图片</h2>
<form action="/upload" method="post" enctype="multipart/form-data">
选择文件:<input type="file" name="file">
<input type="submit" value="上传">
</form>
</fieldset>
</body>
</html>