thinkphp5使用curl调用java接口上传图片笔记！

php使用curl调用java接口上传[multipart/form-data]图片！

接口文档

接口提供方是java，具体实现未知，一开始用h5直接提交到接口地址没毛病。后来改成先php上传到自己服务器再通过curl去post到接口地址。然后就出现问题了，下面是解决办法：

curl malformed这个curl malformed报错原因是curl请求的url设置错误，(lll￢ω￢)

前端通过ajax每次上传一张图片，成功后返回地址展示前端

        $.ajax({
            url: "/app/score/uploadImg",
            type: 'POST',
            data: formData,
            async: false,
            cache: false,
            dataType: 'json',
            crossDomain: true,
            contentType: false,
            processData: false,
            beforeSend: function (XMLHttpRequest) {
                $("#loading").css("display", "block")
            },
            success: function (data) {
                commonalter(data.msg);
                if (data.code == 200) {
                    $(".z_file").append("<img class='imgList' onclick='imgClick(this)' src=" + data.data.data + ">");
                }
            },
            complete: function (XMLHttpRequest, textStatus) {
                $("#loading").css("display", "none");
            },
            error: function () {
            }
        });

后端最终代码：

     /*
     * 积分兑换上传图片(报单)
     */
    public function uploadImg(){
        set_time_limit(0);
        ini_set('memory_limit','500M');
        $upload_path = DS . 'uploads' . DS . 'orderlist'.DS;
        $public_path =  'public' . $upload_path;
        $type = $_FILES['fileImg']['type'];
        $file_name = $_FILES['fileImg']['name'];
        $tmp_name = $_FILES['fileImg']['tmp_name'];
        $new_file = ROOT_PATH.$public_path.$file_name;
         move_uploaded_file($tmp_name,$new_file);
        $data = [
            'fileImg' => new \CURLFile(realpath($new_file)),//'@'.realpath($tmp_name),
            "filename" => $file_name
        ];
        $result = $this->curl_request(config('jifen.url').'/api/order/uploadImg.remote', $data);
        $result = json_decode($result,true);
        if($result['code'] == 1){
            $this->response($code=200,$msg='上传成功',$data = ['data'=>config('jifen.url').$result['fileName']]);
        }else{
            $this->response($code=400,$msg= $result['msg'],$data = ['tmp_name'=>realpath($tmp_name),'file_name'=>$file_name,'type'=>$type]);
        }

    }


    private function curl_request($url,$post_data)
    {
        // 模拟提交数据函数
        $curl = curl_init(); // 启动一个CURL会话
        curl_setopt($curl, CURLOPT_URL, $url); // 要访问的地址
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); // 对认证证书来源的检查
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false); // 从证书中检查SSL加密算法是否存在
        #curl_setopt($curl, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']); // 模拟用户使用的浏览器
        #curl_setopt($curl, CURLOPT_HTTPHEADER, array('Content-Type: multipart/form-data'));
        curl_setopt($curl, CURLOPT_POST, true); // 发送一个常规的Post请求
        curl_setopt($curl, CURLOPT_SAFE_UPLOAD, true);
        curl_setopt($curl, CURLOPT_POSTFIELDS, $post_data); // Post提交的数据包
        curl_setopt($curl, CURLOPT_TIMEOUT, 30); // 设置超时限制防止死循环
        curl_setopt($curl, CURLOPT_HEADER, false); // 显示返回的Header区域内容
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); // 获取的信息以文件流的形式返回
        $result = curl_exec($curl); // 执行操作
        if (curl_errno($curl)) {
            print curl_error($curl);
        }
        curl_close($curl); // 关键CURL会话
        return $result; // 返回数据
    }

使用如下代码报错php curl上传图片所需的多部分文件参数不存在

HTTP Status 400 - Required MultipartFile parameter 'fileImg' is not present

 
  $post_data = [
 'fileImg'=> '@'.ROOT_PATH .$public_path.$info->getSaveName(),
 'filename'=>$info->getFileName(),
 ]; 

  $post_data = [
 'fileImg'=> new \CURLFile(ROOT_PATH .$public_path.$info->getSaveName()),
 'filename'=>$info->getFileName(),
 ];

$file_info = $this->curl_request($url=config('jifen.url').'/api/order/uploadImg.remote',$post_data);
 

上传图片java服务端报错

HTTP Status 400 - Required MultipartFile parameter 'fileImg' is not present
type Status report

message Required MultipartFile parameter 'fileImg' is not present

description The request sent by the client was syntactically incorrect.

Apache Tomcat/7.0.86

上传图片小于1M的很快传成功，

   $upload_path = DS . 'uploads' . DS . 'orderlist'.DS;
        $public_path =  'public' . $upload_path;
        $allow_size = 1048576;
        $file = $this->request->file('fileImg');
        $info = $file->rule('date')->validate(['size'=>3 * $allow_size])->move(ROOT_PATH.$public_path);
        if($info){
            if($info->getSize() >$allow_size){//压缩图片
                $file_name = 'thumb_'.$info->getFilename();
                $new_file = $info->getPath().DS.$file_name;
                $image =  Image::open($info->getPathname());
                $image->thumb(750,1334,1)->save($new_file);
            }else{//直接上传
                $file_name = $info->getFilename();
                $new_file = $info->getPathname();
            }

            $data = [
                'fileImg' => new \CURLFile($new_file),//'@'.realpath($tmp_name),
                "filename" => $file_name
            ];
            $result = $this->curl_request(config('jifen.url').'/api/order/uploadImg.remote', $data);
            $result = json_decode($result,true);
            if($result['code'] == 1){
                $this->response($code=200,$msg='上传成功',$data = ['data'=>config('jifen.url').$result['fileName']]);
            }
        }
        $this->response($code=400,$msg= $file->getError(),$data = []);