鉴权 token 获取

token 由文件服务器管理员分配

接口定义

上传文件

请求 URL：

请求方式：

GET/POST

参数形式：

form-data

参数：

参数名位置类型说明是否必填

access_tokenheaderString用户 token是

fileurlMultipartFile文件是

返回：

参数名必选类型说明

msg是String提示

code是Integer错误代码

data是String数据

data 域内容

参数名必选类型说明

filePath是String文件的存储位置

fileName是Integer文件的原始名称

fileType是String文件类型

httpUrl是String文件的访问地址(未开启防盗链时可用)

返回示例

{

"msg": "操作成功",

"code": 200,

"data": {

"filePath": "group1/M00/00/0D/wKjcAl-SNgmAVJK7AACEAGBrbtI245.jpg",

"fileName": "timg.jpg",

"fileType": "jpg",

"httpUrl": "http://192.168.220.2:80/group1/M00/00/0D/wKjcAl-SNgmAVJK7AACEAGBrbtI245.jpg"

}

}

备注

获取防盗链地址

请求 URL：

请求方式：

GET/POST

参数形式：

form-data

参数：

参数名位置类型说明是否必填

access_tokenheaderString用户 token是

filePathurlString文件路径是

返回：

参数名必选类型说明

msg是String提示

code是Integer错误代码

data是String文件的防盗链访问路径

返回示例

{

"msg": "操作成功",

"code": 200,

"data": "http://192.168.220.2:80/group1/M00/00/0D/wKjcAl-SNgmAVJK7AACEAGBrbtI245.jpg?token=639e5738e7c457eb2f061fc0d71a3165&ts=1603417665"

}

备注

删除文件

请求 URL：

请求方式：

GET/POST

参数形式：

form-data

参数：

参数名位置类型说明是否必填

access_tokenheaderString用户 token是

filePathurlString文件路径是

返回：

参数名必选类型说明

msg是String提示

code是Integer错误代码

data是Integer0 为正常响应，非 0 为异常响应，文件不存在等

返回示例

{

"msg": "操作成功",

"code": 200,

"data": 0

}

备注

java 调用工具类

import org.apache.http.HttpResponse;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpPost;

import org.apache.http.entity.StringEntity;

import org.apache.http.impl.client.DefaultHttpClient;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.web.multipart.MultipartFile;

import java.io.*;

import java.net.HttpURLConnection;

import java.net.URL;

import java.util.HashMap;

import java.util.Map;

public class HttpClientUtil {

private static Logger logger = LoggerFactory.getLogger(HttpClientUtil.class);

/**

* 路径分隔符

*/

public static final String SEPARATOR = "/";

/**

* Point

*/

public static final String POINT = ".";

/**

* ContentType

*/

public static final Map EXT_MAPS = new HashMap<>();

static {

initExt();

}

public static void initExt() {

// image

EXT_MAPS.put("png", "image/png");

EXT_MAPS.put("gif", "image/gif");

EXT_MAPS.put("bmp", "image/bmp");

EXT_MAPS.put("ico", "image/x-ico");

EXT_MAPS.put("jpeg", "image/jpeg");

EXT_MAPS.put("jpg", "image/jpeg");

// 压缩文件

EXT_MAPS.put("zip", "application/zip");

EXT_MAPS.put("rar", "application/x-rar");

// doc

EXT_MAPS.put("pdf", "application/pdf");

EXT_MAPS.put("ppt", "application/vnd.ms-powerpoint");

EXT_MAPS.put("xls", "application/vnd.ms-excel");

EXT_MAPS.put("xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");

EXT_MAPS.put("pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation");

EXT_MAPS.put("doc", "application/msword");

EXT_MAPS.put("doc", "application/wps-office.doc");

EXT_MAPS.put("docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document");

EXT_MAPS.put("txt", "text/plain");

// 音频

EXT_MAPS.put("mp4", "video/mp4");

EXT_MAPS.put("flv", "video/x-flv");

}

/**

* @Title: postRestData

* @TitleExplain: post请求接口

* @Description: post请求接口

* @param urlStr 请求url

* @return String post响应

*/

public static String postDataLikeFormData(String urlStr,MultipartFile file,String fastdfsAccessToken) {

String result = "";

// 换行符

final String newLine = "\r\n";

final String boundaryPrefix = "--";

// 定义数据分隔线

String BOUNDARY = "========7d4a6d158c9";

// 服务器的域名

URL url =null;

HttpURLConnection conn=null;

DataInputStream in=null;

try {

url = new URL(urlStr);

conn = (HttpURLConnection) url.openConnection();

// 设置为POST情

conn.setRequestMethod("POST");

// 发送POST请求必须设置如下两行

conn.setDoOutput(true);

conn.setDoInput(true);

conn.setUseCaches(false);

// 设置请求头参数

conn.setRequestProperty("connection", "Keep-Alive");

conn.setRequestProperty("Charsert", "UTF-8");

conn.setRequestProperty("access_token",fastdfsAccessToken);

conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);

OutputStream out = new DataOutputStream(conn.getOutputStream());

/**

* 循环输出

*

* */

StringBuilder sb = new StringBuilder();

sb.append(boundaryPrefix);

sb.append(BOUNDARY);

sb.append(newLine);

sb.append("Content-Disposition: form-data;name=\"file\";filename=\"" + file.getOriginalFilename()

+ "\"" + newLine);

String contentType=getContentTypeByFileName(file.getOriginalFilename());

sb.append("Content-Type:"+contentType);

sb.append(newLine);

sb.append(newLine);

out.write(sb.toString().getBytes());

byte[] bufferOut = new byte[1024];

int bytes = 0;

//如果文件为空则不上传

if (file.isEmpty() || file.getSize() <= 0) {

logger.debug("文件为空或大小为0没有上传fastdfs:" + file.getOriginalFilename());

return null;

}

in = new DataInputStream(file.getInputStream());

while ((bytes = in.read(bufferOut)) != -1) {

//bufferOut转化为String之后会损失部分数据，所以之后的操作直接输出，不转化为string

// sb.append(new String(bufferOut));

out.write(bufferOut, 0, bytes);

}

sb.append(newLine + boundaryPrefix + BOUNDARY);

sb.append(boundaryPrefix + newLine);

byte[] end_data = (newLine + boundaryPrefix + BOUNDARY + boundaryPrefix + newLine).getBytes();

out.write(end_data);

logger.debug("请求数据为： "+sb.toString());

out.flush();

out.close();

StringBuffer sbResult = new StringBuffer();

// 定义BufferedReader输入流来读取URL的响应

BufferedReader reader = new BufferedReader(new InputStreamReader(

conn.getInputStream()));

String line = null;

while ((line = reader.readLine()) != null) {

//System.out.println(line);

sbResult.append(line+"\r\n");

}

reader.close();

result = sbResult.toString();

} catch (Exception e) {

logger.error("发送POST请求出现异常！" + e);

}finally {

if (conn != null) {

conn.disconnect();

try {

in.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

logger.debug("post "+urlStr +",result="+result);

return result;

}

/**

* 根据文件名获取contentType

* */

public static String getContentTypeByFileName(String fileName){

return EXT_MAPS.get(getFilenameSuffix(fileName));

}

/**

* 获取文件名称的后缀

*

* @param filename 文件名 或 文件路径

* @return 文件后缀

*/

public static String getFilenameSuffix(String filename) {

String suffix = null;

String originalFilename = filename;

if (StringUtils.isNotBlank(filename)) {

if (filename.contains(SEPARATOR)) {

filename = filename.substring(filename.lastIndexOf(SEPARATOR) + 1);

}

if (filename.contains(POINT)) {

suffix = filename.substring(filename.lastIndexOf(POINT) + 1);

} else {

if (logger.isErrorEnabled()) {

logger.error("filename error without suffix : {}", originalFilename);

}

}

}

return suffix;

}

/**

* 从指定系统获取写卡数据

*

* */

public static String downloadFile(String urlStr,String filePath,String fastdfsAccessToken){

String result = null;

try{

HttpClient client = new DefaultHttpClient();

StringBuffer sb=new StringBuffer(urlStr);

StringBuffer params=new StringBuffer("");

params.append("filePath=");

params.append(filePath);

HttpPost post = new HttpPost(sb.toString());

//设置header参数

post.addHeader("access_token",fastdfsAccessToken);

//设置其它参数

StringEntity stringEntity = new StringEntity(params.toString());//param参数，可以为"key1=value1&key2=value2"的一串字符串

stringEntity.setContentType("application/x-www-form-urlencoded");

post.setEntity(stringEntity);

HttpResponse resp = client.execute(post);

BufferedReader brBufferedReader = new BufferedReader(

new InputStreamReader(resp.getEntity().getContent(), "utf-8"));

StringBuffer resultSb = new StringBuffer();

String line = "";

while ((line = brBufferedReader.readLine()) != null) {

resultSb.append(line);

}

brBufferedReader.close();

result = resultSb.toString();

}catch(Exception e){

logger.error("系统异常：",e);

}

return result;

}

}