在一个请求中又发送文件又有字符串数据

爱被打了一巴掌 2022-05-27 00:21 122阅读 0赞

主要是利用FormData来实现

var formdata = new FormData(document.getElementById(“defendanttodefenceForm”));  
页面数据:

<div class="DPosition">
        <span>答辩演示页面</span>
    </div>
    <style type="text/css"> label.error { color:Red; font-size:13px; margin-left:5px; padding-left:16px; background:url("#springUrl('/')resources/images/unchecked.gif") left no-repeat; } </style>
    <script> $().ready(function () { $("#defendanttodefenceForm").validate({ rules:{ billId: "required", phone: "required", defenseFile: "required" } }) }) </script>
    <div class="mbox">
        <div class="mboxR">
            
    
            <div class="mboxRbox">
                <h1 align="center">答辩演示页面</h1><br>
                <form id="defendanttodefenceForm" action="#springUrl('/')defendanttodefence?save" method="post" enctype="multipart/form-data">
                    <div class="tabConBox_L" >
    
                        <p>
                            <span>订单编号：</span>
                            <input id="billId" name="billId" type="text" class="bor txtth" size="100" value="$!{bill.billId}"></input>
                        </p>
                        <p>
                            <span> </span>
                            <input type="button" value="查看申请人提交的仲裁申请书" class="btn_small m_r" onclick="showpdf()" style=" width: 200px;"></input>
                        </p>
                        <p>
                            <span>手机号码：</span>
                            <input id="phone" name="phone" type="text" class="bor txtth" size="100" value="$!{userInfo.phone}"></input>
                        </p>
                        <p>
                            <span>答辩意见书：</span>
                            <input id="defenseFile" name="defenseFile" type="file" class="bor txtth" size="100"></input>
                        </p>
                    </div>
                    <div class="btn_bottom">
                        <input type="button" value="提交" class="btn_small m_r" onclick="save()"></input>
                        <input type="reset" value="重置" class="btn_small m_r" onclick="reset()"></input>
                    </div>
                </form>
            </div>
        </div>
    </div>
    <script type="text/javascript"> function reset() { $(':input','#myform') .not(':button, :submit, :reset, :hidden') .val('') .removeAttr('checked') .removeAttr('selected'); } function save() { var formdata = new FormData(document.getElementById("defendanttodefenceForm")); $.ajax({ type: "POST", url: "#springUrl('/')defendanttodefence?save", data:formdata, processData: false, // 告诉jQuery不要去处理发送的数据 contentType: false, // 告诉jQuery不要去设置Content-Type请求头 success: function(data){ var jsondata = eval("("+data+")"); if(1==jsondata.retCod){ alert("答辩成功"); window.location.href="#springUrl('/')defendanttodefence" }else{ alert(jsondata.msg) } }, error: function (data, status, e){ alert("网络错误") } }); } function showpdf() { var billId = document.getElementById("billId").value; if(billId == '' || billId == undefined || billId == null){ alert("订单编号不能为空"); }else{ var url = "#springUrl('/')defendanttodefence/browser/"+ billId; window.open(url, "_blank", "top=200,left=200,height=600,width=800,status=yes," + "toolbar=1,menubar=no,location=no,scrollbars=yes"); } } </script>

后台接口:

package com.itrus.laweyecloud.controller.user.test;
    
    import com.itrus.laweyecloud.common.constant.ComNamesOfFile;
    import com.itrus.laweyecloud.controller.base.AbstractController;
    import com.itrus.laweyecloud.orm.entity.Bill;
    import com.itrus.laweyecloud.orm.entity.FileOfBill;
    import com.itrus.laweyecloud.orm.entity.SysConfig;
    import com.itrus.laweyecloud.orm.entity.UserInfo;
    import com.itrus.laweyecloud.pojo.FileOfBillWrap;
    import com.itrus.laweyecloud.service.*;
    import com.itrus.laweyecloud.utils.LocalCache;
    import com.itrus.laweyecloud.utils.LogUtil;
    import org.apache.commons.io.FileUtils;
    import org.apache.commons.io.IOUtils;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.*;
    import org.springframework.web.multipart.MultipartFile;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.IOException;
    import java.io.OutputStream;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    
    /** * @Author jiangwenhui * @Description * @Date Created in 2018/2/1 0001 */
    @Controller
    @RequestMapping("/defendanttodefence")
    public class DefendantToDefenceController extends AbstractController{ 
    
        @Autowired
        LogUtil logUtil;
    
        @Autowired
        DefendantToDefenceService defendantToDefenceService;
    
        @Autowired
        BillService billService;
    
        @Autowired
        UserInfoService userInfoService;
    
        @Autowired
        FileOfBillService fileOfBillService;
    
        @Autowired
        BillAndDefendantsService billAndDefendantsService;
    
        @Autowired
        private final static Logger logger = LoggerFactory.getLogger(DefendantToDefenceController.class);
    
        private final static String CONTENT_DISPOSITION = "Content-Disposition";
    
        /** * 缓存类 */
        private LocalCache localCache = LocalCache.getInstance();
    
        /** * 系统设置服务 */
        @Autowired
        private SysConfigService sysConfigService;
    
        /** * 文件存储目录标识 * trustFileDir */
        private static final String FILE_SOURCE_KEY = "trustFileDir";
    
    
    
        /** * 缓存时间（12h） */
        private static final long CACHE_TIME = 12 * 60 * 60 * 1000;
        /** * 文件存储目录 */
        private static String DEST_DIR;
    
    
        /** * 答辩演示页面 */
        @RequestMapping(produces = "text/html")
        public String createForm(Model uiModel){
    // uiModel.addAttribute("message")
            List<Bill> billList = billService.findAll();
            if(null != billList && !billList.isEmpty()){
                Bill bill = billList.get(0);
                uiModel.addAttribute(bill);
                UserInfo userInfo = billAndDefendantsService.getPrimaryDefentdant(bill);
                if(null != userInfo){
                    uiModel.addAttribute(userInfo);
                }
    
            }
            return "defendanttodefence/create";
        }
    
        /** * 答辩处理 */
        @RequestMapping(params = "save", method = RequestMethod.POST, produces = "text/html")
        @ResponseBody
        public Map<String, Object> create(
                @RequestParam(value = "defenseFile", required = false) MultipartFile defenseFile,
                @RequestParam(value = "billId", required = false) String billId,
                @RequestParam(value = "phone", required = false) String phone){
            Map<String, Object> retMap = new HashMap<String, Object>();
            retMap.put("retCod", 0);
            if(null == defenseFile || null == phone || null == billId){
                retMap.put("msg","答辩意见书、订单编号、手机号不能为空");
                return retMap;
            }
            Map<String, Object> paramMap = new HashMap<String, Object>();
            paramMap.put("billId", billId);
            List<Bill> billList = billService.getListByParam(paramMap);
            if(null == billList || billList.isEmpty()){
                retMap.put("msg","订单不存在");
                return retMap;
            }
            Bill bill = billList.get(0);
            UserInfo userInfo = userInfoService.getUserInfoByPhone(phone);
            if(null == userInfo){
                retMap.put("msg","用户不存在");
                return retMap;
            }
            File file = null;
            try {
                // file = File.createTempFile("pdf",null);
                // defenseFile.transferTo(file);
                setDestDir();
                file = new File(DEST_DIR + File.separator,defenseFile.getOriginalFilename());
                FileUtils.copyInputStreamToFile(defenseFile.getInputStream(), file);
                defendantToDefenceService.defendantToToDefence(bill, userInfo, file);
                String oper = "提交答辩";
                String info = "答辩对应订单id: " + bill.getBillId();
                logUtil.adminlog(oper, info);
                file.deleteOnExit();
                retMap.put("retCod", 1);
            } catch (Exception e) {
                e.printStackTrace();
                logger.error("class DefendantToDefenceController method create execute exception",e);
                retMap.put("msg", e.getMessage());
            }
            return retMap;
        }
    
        @RequestMapping(value = "/browser/{billId}",method = RequestMethod.GET,produces = "text/html")
        public void browserPdf(@PathVariable("billId")String billId,
                               HttpServletRequest request, HttpServletResponse response) {
    
            Map<String, Object> billMap = new HashMap<String, Object>();
            Map<String, Object> paramMap = new HashMap<String, Object>();
            billMap.put("billId", billId);
            List<Bill> billList = billService.getListByParam(billMap);
            if(null == billList || billList.isEmpty()){
                logger.error("defendantToDefenceController, browser " + "找不到订单");
            }
            Bill bill = billList.get(0);
            paramMap.put("bill", bill);
            paramMap.put("dataType", ComNamesOfFile.DATA_TYPE_CX_1);  //程序材料
            paramMap.put("fileType", ComNamesOfFile.FILE_TYPE_1);  //仲裁申请书
            paramMap.put("belong", ComNamesOfFile.BELONG_SQR_1);  //申请人
            paramMap.put("source", ComNamesOfFile.SOURCE_1);  //用户上传的
    
            try {
                List<FileOfBill> fileOfBillList = fileOfBillService.getListByParam(paramMap);
                if(null == fileOfBillList || fileOfBillList.isEmpty()){
                    logger.error("defendantToDefenceController, browser " + "找不到文件");
                }
                FileOfBill fileOfBill = fileOfBillList.get(0);
                String path = null;
                try {
                    //获取文件
                    FileOfBillWrap fileOfBillWrap = fileOfBillService.downLoadFile(fileOfBill.getBill(), fileOfBill);
                    File file = fileOfBillWrap.getFile();
                    path = file.getPath();
                    // 转码,防止输出到浏览器中文乱码
                    response.setHeader(CONTENT_DISPOSITION, "filename=" + file.getName());
                    response.addHeader("Content-Length", "" + file.length());
    
                    //根据文件设置文件类型
                    //设置头可在线浏览
                    response.setContentType("application/pdf");
                    response.setCharacterEncoding("utf-8");
                    OutputStream os = response.getOutputStream();
                    try {
                        IOUtils.copy(new FileInputStream(file), os);
                    } catch (IOException e) {
                        e.printStackTrace();
                    } finally {
                        if(null != os){
                            os.close();
                        }
                    }
                } catch (Exception e) {
                    logger.error("defendantToDefenceController, browser " + e.getMessage());
                    e.printStackTrace();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
    
    
        }
    
        public void setDestDir() throws Exception {
    
            SysConfig sysConfig = (SysConfig) localCache.getCache(FILE_SOURCE_KEY);
            if (null == sysConfig) {
                //从数据库中获取
                sysConfig = sysConfigService.selectSysConfigByType(FILE_SOURCE_KEY);
                //放入缓存
                localCache.setCache(FILE_SOURCE_KEY, CACHE_TIME, sysConfig);
            }
            DEST_DIR = sysConfig.getConfig();
        }
    
    
    }