一 : Java 代码

@RestController
@RequestMapping(value = "/v1/upload")
public class UploadController {

    @Autowired
    private IWechatBaseService iWechatService;

    /**
     * 图片上传
     * @param files
     * @param request
     * @param response
     * @return
     */
    @RequestMapping(value="/image", method = RequestMethod.POST)
    @ApiOperation("图片上传")
    public JSONData uploadFile(MultipartFile[] files, HttpServletRequest request, HttpServletResponse response){
        List<BaseParameterEntity> list = iWechatService.getListByCode("files_url");
        String[] path = new String[2];
        for (int i=0;i< list.size();i++) {
            path[i]=list.get(i).getValue();
        }
        UploadEntity fileEntity = new UploadEntity();
        try{
            if((files != null && files.length>0)){
                StringBuffer url = new StringBuffer();
                for (int i=0;i<files.length;i++) {
                    if(!files[i].isEmpty()) {
                        String pathname = uploadAndGetPathOnly(files[i], request, i, path);
                        if (!StringUtils.isEmpty(pathname)) {
                            url.append(pathname).append(";");
                        }
                    }
                }
                //设置页面路径
                fileEntity.setFiles(url.toString().substring(0, url.length()-1));
//                String s =url.toString().substring(url.toString().lastIndexOf("/")+1);
//                fileEntity.setName((s).substring(0, s.length() - 1));
                //fileEntity.setVisit("http://183.134.200.15:8034/api/images/"+ ((s).substring(0, s.length() - 1)));
            }
        }catch (RRException e){
            e.setMsg("上传文件失败");
            throw e;
        }
        JSONData jsonData = new JSONData();
        jsonData.setData(fileEntity);
        return jsonData;
    }

}

二 ：数据库配置

CREATE TABLE `p_base_parameter` (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `name` varchar(100) DEFAULT NULL COMMENT '字段名称',
  `code` varchar(100) DEFAULT NULL COMMENT '字段编号',
  `value` varchar(100) DEFAULT NULL COMMENT '字段值',
  `sort` int(11) DEFAULT '0' COMMENT '排序',
  `dept_id` int(11) DEFAULT NULL COMMENT '部门ID',
  `description` varchar(500) DEFAULT NULL COMMENT '描述',
  `parent_id` int(11) DEFAULT NULL COMMENT '父id',
  `creater` int(11) DEFAULT NULL COMMENT '创建人',
  `create_date` datetime DEFAULT NULL COMMENT '创建时间',
  `last_updater` int(11) DEFAULT NULL COMMENT '更新人',
  `last_update_date` datetime DEFAULT NULL COMMENT '更新时间',
  `status` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=16 DEFAULT CHARSET=utf8 COMMENT='基础参数表';

数据配置

三 ： Nginx 配置

location ~*  \.(apk|gif|jpg|jpeg|png|bmp|doc|docx|ppt|pptx|pdf|xls|xlsx|mp3|mp4)$ {
            root  /usr/local/cci/files/;
            add_header Access-Control-Allow-Origin *;
        add_header Access-Control-Allow-Headers X-Requested-With;
        add_header Access-Control-Allow-Methods GET,POST,OPTIONS;
            expires 10d;
            proxy_connect_timeout 90;
            proxy_send_timeout 90;
            proxy_read_timeout 90;
            proxy_buffer_size 4k;
            proxy_buffers 4 32k;
            proxy_busy_buffers_size 64k;
            proxy_temp_file_write_size 64k;
            proxy_ignore_client_abort on;
         }

四 ：知识点拓展

在上述的Nginx 配置，可以发现，拦截所有的 apk|gif|jpg|jpeg|png|bmp|doc|docx|ppt|pptx|pdf|xls|xlsx|mp3|mp4 结尾的资源，导致当其他图片的文件夹路径必须在 /usr/local/cci/files/ ，那怎么独立配置呢？ 如下 ：

location ~ /wechat/.*\.(apk|gif|jpg|jpeg|png|bmp|doc|docx|ppt|pptx|pdf|xls|xlsx|mp3|mp4)$ {
            root  /usr/local/cci/files/;
            add_header Access-Control-Allow-Origin *;
        add_header Access-Control-Allow-Headers X-Requested-With;
        add_header Access-Control-Allow-Methods GET,POST,OPTIONS;
            expires 10d;
            proxy_connect_timeout 90;
            proxy_send_timeout 90;
            proxy_read_timeout 90;
            proxy_buffer_size 4k;
            proxy_buffers 4 32k;
            proxy_busy_buffers_size 64k;
            proxy_temp_file_write_size 64k;
            proxy_ignore_client_abort on;
         }

这样就可以指定拦截 /wechat 的资源路径了
例如 ： http://ip:80/wechat/images/15746735130920.png
注意 : 在nginx 上面配置文件路径为 ： /usr/local/cci/files/wechat/images

五 : spring boot 上传文件大小设置
org.springframework.web.multipart.MaxUploadSizeExceededException: Maximum upload size of 5242880 bytes exceeded; nested exception is org.apache.commons.fileupload.FileUploadBase$SizeLimitExceededException: the request was rejected because its size (5512783) exceeds the configured maximum (5242880)

servlet:
multipart:
max-file-size: 300000000
max-request-size: 300000000

image.png

413 Request Entity Too Large
nginx http{ }中设置：client_max_body_size 20m;

没有临时文件
org.springframework.web.multipart.MultipartException: Failed to parse multipart servlet request; nested exception is org.apache.commons.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. /tmp/tomcat.5787299030890470771.8034/work/Tomcat/localhost/ROOT/upload_5034069b_14d0_43b8_ab31_55b464831843_00000101.tmp (No such file or directory)

spring:
http:
multipart:
location: /data/upload_tmp