java http post上传文件

@IgnoreToken
@RequestMapping(value = "/upload/cpicFile", method = RequestMethod.POST)
public void cpicFile(HttpServletResponse response, HttpServletRequest request){
ErrorCode errorCode = ErrorCode.FAILED;
Map<String,Object> reqData = this.getContent(request);
String path = SysConf.CPIC_WORKBASEDIR; //上传路径
try {
String name = (String)reqData.get("name");
String content = (String)reqData.get("content");
byte[] bytes = org.apache.commons.codec.binary.Base64.decodeBase64(content);

//写入文件
File fileTmp = new File(path + name); //临时文件
FileOutputStream fop = new FileOutputStream(fileTmp);
if (!fileTmp.exists()) {
fileTmp.createNewFile();
}
fop.write(bytes);
fop.flush();
fop.close();
System.err.println("Done");
errorCode = ErrorCode.SUCCESS;
} catch (Exception e){
logger.error("上传CPIC图片异常",e);
errorCode = ErrorCode.SYS_ERROR;
}
sendResponseContent(response, reqData, errorCode);
}

@Test
public void testCpicUploadFile(){
try {
Map<String,Object> paramMap=new HashMap<>();
paramMap.put("name", "cpic-160714.xml");
File f = new File("C:/sftp/cpic-20160713-3.xml");
InputStream in = new FileInputStream(f);
byte[] b = new byte[(int)f.length()];     //创建合适文件大小的数组
in.read(b);    //读取文件中的内容到b[]数组
in.close();

String s = new String(b);
System.out.println("s = " + s);
System.out.println("b1 = " + b);   //内存地址
String ss = org.apache.commons.codec.binary.Base64.encodeBase64String(b);      //base64编码
System.out.println("ss = " + ss);
System.out.println("b2 = " + Base64.decodeBase64(ss));  //内存地址

paramMap.put("content", ss);
//@IgnoreToken
//            paramMap.put("token", "54ungzbaach65xypcceq48gd6jwlyros");  //token可以加一个注解。
System.out.println("paramMap="+paramMap);
HttpResult httpResult = HttpUtil.post("/cpic/upload/cpicFile",paramMap);
System.out.println(httpResult);
} catch (Exception e) {
e.printStackTrace();
}

}