调用别人提供的url，进行文件上传接口开发：
@ResponseBody
@RequestMapping(value = "/uploadPaasRes", method = RequestMethod.POST)
public Map<String, Object> uploadPaasRes(String resId) {
Map<String, Object> resultMap = new HashMap<String, Object>();
String flagCode="";
String flagMsg="";
try {
// 保存可见范围，并返回中文字符串，
Page<CmRespakg> condition = new Page<CmRespakg>();
condition.setOffset(0);
condition.setPageSize(10000);
//查询资产对应的文件包
List<CmRespakg> cmRespakgList = cmRespakgService.selectListByResId(resId,condition);
if("".equals(resId) || cmRespakgList.size()==0){
resultMap.put("code", "0");
resultMap.put("msg", "该资产无相关资产包，无法上传至PaaS平台！");
return resultMap;
}
String uploadConfig = PropertiesUtil.classPath + "paasUpload.properties";
String queryUrl = PropertiesUtil.getByKey(uploadConfig, "queryUrl", "");
URL restURL = new URL(queryUrl);
BufferedReader br;
try {
//调用PaaS查询API
HttpURLConnection conn = (HttpURLConnection) restURL.openConnection();
br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line;
StringBuilder sb = new StringBuilder();
while((line = br.readLine()) != null ){
sb.append(line);
}
String reqBody = sb.toString();
JSONObject json = new JSONObject(reqBody);
String harborprojectuid=(String) json.get("harborprojectuid");
String projectuid=(String) json.get("projectuid");
String serviceuid=(String) json.get("serviceuid");
//调用上传接口url
HttpURLConnection conne;
try {
String uploadUrl = PropertiesUtil.getByKey(uploadConfig, "uploadUrl", "");
uploadUrl+="projects/"+projectuid+"/services/"+serviceuid+"/harbor-projects/"+harborprojectuid+"/upload";
URL restServiceURL = new URL(uploadUrl);
String boundaryString = PaasUploadUtil.getBoundary();
//多文件处理(遍历资产信息，对于上传多个文件，要进行多次请求才可)
for(int i=0;i<cmRespakgList.size();i++) {
System.out.println("----resid----"+resId);
System.out.println("----path----"+cmRespakgList.get(i).getPath());
//多次请求
conne = (HttpURLConnection) restServiceURL.openConnection();
conne.setDoOutput(true);
conne.setUseCaches(false);
conne.setRequestMethod("POST");
/* conne.setConnectTimeout(CONNECT_TIME_OUT);
conne.setReadTimeout(READ_OUT_TIME);*/
conne.setRequestProperty("accept", "*/*");
conne.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundaryString);
conne.setRequestProperty("connection", "Keep-Alive");
conne.setRequestProperty("user-agent", "Mozilla/4.0 (compatible;MSIE 6.0;Windows NT 5.1;SV1)");
DataOutputStream obos = new DataOutputStream(conne.getOutputStream());
//普通参数
String tag=String.valueOf(new Date().getTime())+"tag";
String namestr=cmRespakgList.get(i).getName().substring(0, cmRespakgList.get(i).getName().indexOf("."));
String repository="software/"+namestr;
System.out.println("-----repository-----"+repository);
Map<String, String> textMap=new HashMap<String, String>();
textMap.put("repository", repository);
textMap.put("tag", tag);
HashMap<String, byte[]> fileMap=new HashMap<String, byte[]>();
// （fileToMultipartFile：该文件转换方法在windows情况下可用，项目部署到linux服务器上时该方法使用会有问题）
//fileMap.put("file",PaasUploadUtil.getBytesFromFile(PaasUploadUtil.fileToMultipartFile(new File("/home/ftpuser/"+cmRespakgList.get(i).getPath()))));
//获取linux服务器上的文件地址
fileMap.put("file",PaasUploadUtil.getBytesFromFile(PaasUploadUtil.getMulFileByPath("/home/ftpuser/"+cmRespakgList.get(i).getPath())));
//本地测试，获取数据库中对应的本地文件地址
//fileMap.put("file",PaasUploadUtil.getBytesFromFile(PaasUploadUtil.getMulFileByPath(cmRespakgList.get(i).getPath())));
Iterator iter = textMap.entrySet().iterator();
while(iter.hasNext()){
Map.Entry<String, String> entry = (Map.Entry) iter.next();
String key = entry.getKey();
String value = entry.getValue();
obos.writeBytes("--" + boundaryString + "\r\n");
obos.writeBytes("Content-Disposition: form-data; name=\"" + key
+ "\"\r\n");
obos.writeBytes("\r\n");
obos.write((value+ "\r\n").getBytes());
}
if(fileMap != null && fileMap.size() > 0){
Iterator fileIter = fileMap.entrySet().iterator();
while(fileIter.hasNext()){
Map.Entry<String, byte[]> fileEntry = (Map.Entry<String, byte[]>) fileIter.next();
obos.writeBytes("--" + boundaryString + "\r\n");
obos.writeBytes("Content-Disposition: form-data; name=\"" + fileEntry.getKey()
+ "\"; filename=\"" + PaasUploadUtil.encode(" ") + "\"\r\n");
obos.writeBytes("\r\n");
obos.write(fileEntry.getValue());
obos.writeBytes("\r\n");
}
}
obos.writeBytes("--" + boundaryString + "--" + "\r\n");
obos.writeBytes("\r\n");
obos.flush();
obos.close();
InputStream ins = null;
int code = conne.getResponseCode();
System.out.println("----code-----:"+code);
if(code == 200){
ins = conne.getInputStream();
}else{
ins = conne.getErrorStream();
}
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] buff = new byte[4096];
int len;
while((len = ins.read(buff)) != -1){
baos.write(buff, 0, len);
}
byte[] bytes = baos.toByteArray();
ins.close();
String reponseStr = new String(bytes);;
JSONObject responseJson = new JSONObject(reponseStr);
System.out.println("=======responseJson======"+responseJson);
String message=(String) responseJson.get("message");
if("500".equals(String.valueOf(code))) {
flagCode+="0,";
int num=i+1;
flagMsg+="该资产第"+num+"资产包"+message+",";
continue;
}
String status=(String) responseJson.get("status");
if(!"success".equals(status)) {
flagCode+="0,";
}else {
flagCode+="1,";
}
int num=i+1;
flagMsg+="该资产第"+num+"资产包"+message+",";
}
} catch (Exception e) {
e.printStackTrace();
resultMap.put("code", "0");
resultMap.put("msg", "paas上传接口调用失败");
}
} catch (Exception e) {
e.printStackTrace();
resultMap.put("code", "0");
resultMap.put("msg", "查询paas信息APi调用失败");
}
} catch (Exception e) {
e.printStackTrace();
resultMap.put("code", "0");
resultMap.put("msg", "上传失败");
}
if(!"".equals(flagCode) && !"".equals(flagMsg)) {
resultMap.put("code", flagCode);
resultMap.put("msg", flagMsg);
return resultMap;
}
resultMap.put("code", "1");
resultMap.put("msg", "文件上传至PaaS平台成功");
return resultMap;
}
帮助类
package com.neunn.ruma.utils;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URLEncoder;
import java.util.Random;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.springframework.mock.web.MockMultipartFile;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.commons.CommonsMultipartFile;
public class PaasUploadUtil {
public static String getBoundary() {
StringBuilder sb = new StringBuilder();
Random random = new Random();
for(int i = 0; i < 32; ++i) {
sb.append("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-".charAt(random.nextInt("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_".length())));
}
return sb.toString();
}
/**
* MultipartFile 转 File
* @param file
* @throws Exception
*/
public static void multipartFileToFile( @RequestParam MultipartFile file ) throws Exception {
File toFile = null;
if(file.equals("")||file.getSize()<=0){
file = null;
}else {
InputStream ins = null;
ins = file.getInputStream();
toFile = new File(file.getOriginalFilename());
inputStreamToFile(ins, toFile);
ins.close();
}
}
public static void inputStreamToFile(InputStream ins, File file) {
try {
OutputStream os = new FileOutputStream(file);
int bytesRead = 0;
byte[] buffer = new byte[8192];
while ((bytesRead = ins.read(buffer, 0, 8192)) != -1) {
os.write(buffer, 0, bytesRead);
}
os.close();
ins.close();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* File 转 MultipartFile （该文件转换方法在windows情况下可用，项目部署到linux服务器上时该方法使用会有问题）
* @param file
* @throws Exception
*/
public static MultipartFile fileToMultipartFile(File file) throws Exception {
MultipartFile multipartFile = null;
try {
FileInputStream input = new FileInputStream(file);
multipartFile = new MockMultipartFile("file", file.getName(), "text/plain", IOUtils.toByteArray(input));
} catch (Exception e) {
e.printStackTrace();
}
return multipartFile;
}
/**
* File 转 MultipartFile2（该文件转换方法兼容windows和linux，推荐使用）
* @param picPath
* @return
*/
public static MultipartFile getMulFileByPath(String picPath) {
FileItem fileItem = createFileItem(picPath);
MultipartFile mfile = new CommonsMultipartFile(fileItem);
return mfile;
}
public static FileItem createFileItem(String filePath) {
File file=new File(filePath);
FileItemFactory factory = new DiskFileItemFactory(16, null);
String textFieldName = "file";
int num = filePath.lastIndexOf(".");
String extFile = filePath.substring(num);
FileItem item = factory.createItem(textFieldName, "text/plain", true, file.getName());
File newfile = new File(filePath);
int bytesRead = 0;
byte[] buffer = new byte[8192];
try {
FileInputStream fis = new FileInputStream(newfile);
OutputStream os = item.getOutputStream();
while ((bytesRead = fis.read(buffer, 0, 8192)) != -1) {
os.write(buffer, 0, bytesRead);
}
os.close();
fis.close();
} catch (IOException e) {
e.printStackTrace();
}
return item;
}
//编码格式
public static String encode(String value) throws Exception{
return URLEncoder.encode(value, "UTF-8");
}
//文件转成byte流
public static byte[] getBytesFromFile(MultipartFile f) {
File mfCovFile = null;
try {
mfCovFile = new File(f.getOriginalFilename());
FileUtils.copyInputStreamToFile(f.getInputStream(), mfCovFile);
} catch (IOException e) {
e.printStackTrace();
}
if (f == null) {
return null;
}
try {
FileInputStream stream = new FileInputStream(mfCovFile);
ByteArrayOutputStream out = new ByteArrayOutputStream(1000);
byte[] b = new byte[1000];
int n;
while ((n = stream.read(b)) != -1)
out.write(b, 0, n);
stream.close();
out.close();
return out.toByteArray();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}