HttpClient API地址：http://hc.apache.org/httpclient-3.x/apidocs/
HttpClient httpclient = new DefaultHttpClient();
int statusCode=0;
1、使用Get方式访问
HttpGet get =null;
HttpParams conParams = httpclient.getParams();
HttpConnectionParams.setConnectionTimeout(conParams, 60000);
HttpConnectionParams.setSoTimeout(conParams, 600000);
HttpResponse response=null;
try {
//服务器端响应地址
String targetURL="http://localhost/File/httpServerUpload.json?area=" + val + "&fileType=" + fileTpye + ".replace(" ", "");
get = new HttpGet(targetURL);
response = httpclient.execute(get);
int a = response.getStatusLine().getStatusCode();
System.out.println("a-------------------->" + a);
if (a == 200) {
HttpEntity resEntity = response.getEntity();
String result = EntityUtils.toString(resEntity, "UTF-8");// httpclient自带的工具类读取返回数据
System.out.println("result------------------------------------------>"+result);
EntityUtils.consume(resEntity);
if(result.equals("200")){
return ResponseData.SUCCESS_NO_DATA;
}else{
return ResponseData.FAILED_NO_DATA;
}
} else {
return new ResponseData(false, "服务器响应失败");
}
} catch (Exception e) {
e.printStackTrace();
}
2、使用Post访问
try{
//服务器端响应地址
String targetURL="http://localhost/File/httpServerUpload.json?area=" + val + "&fileType=" + fileTpye + ".replace(" ", "");
HttpPost httppost = new HttpPost(targetURL);
FileBody fileBody = new FileBody(uploadFile);
MultipartEntity reqEntity = new MultipartEntity();
//传递参数
reqEntity.addPart("fileBody", fileBody);
httppost.setEntity(reqEntity);
HttpResponse responseBack = httpclient.execute(httppost);
//响应返回值
statusCode = responseBack.getStatusLine().getStatusCode();
System.out.println("statusCode--------------------------------->"+statusCode);
if (statusCode == HttpStatus.SC_OK) {
HttpEntity resEntity = responseBack.getEntity();
String result = EntityUtils.toString(resEntity, "UTF-8");// httpclient自带的工具类读取返回数据
System.out.println("result------------------------------------------>"+result);
EntityUtils.consume(resEntity);
if(result.equals("200")){
return ResponseData.SUCCESS_NO_DATA;
}else{
return ResponseData.FAILED_NO_DATA;
}
} else {
return new ResponseData(false, "服务器响应失败");
}
}catch(Exception e){
e.printStackTrace();
}
3、服务器端响应代码 采用springMVC get方式不能使用以下方式上传 必须POST 并且from表单需要设置enctype="multipart/form-data" 返回值ResponseData可根据项目要求修改
// httpClient方式文件上传 --服务端
@RequestMapping(value = "/httpServerUpload.json")
@ResponseBody
public ResponseData httpServerUpload(@RequestParam("fileBody") MultipartFile fileBody,
HttpServletRequest request, HttpServletResponse response) throws IOException {
System.out.println("---------------------------服务端----------------------------------");
response.reset();
PrintWriter out = response.getWriter();
// 响应客户端
response.setContentType("text/html");
try {
String val = request.getParameter("area");//获取文件保存地址
String fileType = request.getParameter("fileType");//获取文件类型
//判断上传文件是否存在
if(fileBody.isEmpty()){
out.write("404");
return null;
}
//判断保存路径是否存在
File savePathFile = new File(val);
if(!savePathFile.exists() && !savePathFile.isDirectory()){
out.write("404");
return null;
}
//判断文件类型是否为空
if(fileType.isEmpty() || "".equals(fileType)){
out.write("500");
return null;
}
String path = val + "123456" +".JPG";
byte[] fileByte = fileBody.getBytes();
FileUtils.writeByteArrayToFile(new File(path), fileByte);
out.write("200");
} catch (Exception e) {
e.printStackTrace();
}finally {
out.close();
}
return ResponseData.SUCCESS_NO_DATA;
}