struts1+ajax導入excel文件，並獲取返回值回顯到頁面

一、頁面

<td><input name="button" type="button" id="importButton" style="height: 25px; line-height: 25px; margin-top: 15px;" onClick = "checkForm()" value="點擊上傳"/>
</td>

二、js

//導入
function checkForm(){

var url = APP_PATH+'/import.do?method=import';
$("#dispatchForm").ajaxSubmit({
    url:url,
    dataType:'html',
    success:function(data){
      
        data=data.replace(/\r\n/g, "");
        var retJson = eval("(" + data + ")");
        if(typeof(retJson.success)!='undefined'){
            //判斷導入校驗結果是成功還是失敗
            importResult=retJson.success;
            if(retJson.text !=''){
                $('#importDivInfo').css("display","block");
                $('#importTable').html("");
                $('#importTable').html(retJson.text);
                if("模板導入不正確，請重新導入"==retJson.text){
                    $('#exportInfo').css("display","none");
                }else{
                    $('#exportInfo').css("display","block");
                }
            }else{
                alert("導入數據解析失敗");
            }
        }
    },
    error:function(ret){
        if (top.jq) {
            top.Mask.unload();
        }
        $('#importButton').attr("disabled",false)
        $("#importButton").attr("class","button_add");
        ymPrompt.alert("上傳失敗！");
    }
});

}

三、action

/**
 * @method 導入模板
 * @param mapping
 * @param form
 * @param request
 * @param response
 * @throws Exception
 */
public void import(ActionMapping mapping, ActionForm form, HttpServletRequest request,
                                     HttpServletResponse response) {
    
    BatchResultInfo info=null;
    JsonResponse resp = new JsonResponse();
    try {
        FileForm fileForm = (FileForm) form;
        // 獲取選擇的模版文件
        FormFile file = fileForm.getFile();
        if(null!=file){
         
            // 調用importData(File)執行導入操作
            info = jkApproveChangeService.importJKApprove(file, applyType,rtUser);
            //最終是否校驗成功
            boolean batchImport = true;
            if(null==info){
                batchImport = false;
                resp.setSuccess(batchImport);
            }else{    
                    StringBuffer htmlText=createHtmlTable();
                    resp.setText(htmlText.toString());
                }

            }
            printHTML(response, resp.getJsonString());
        }
    } catch (Exception e) {
        e.printStackTrace();
        logger.error("importJKApprove(ActionMapping, ActionForm, HttpServletRequest, HttpServletResponse)", e);
    }catch (Exception e) {
        logger.error("importJKApprove(ActionMapping, ActionForm, HttpServletRequest, HttpServletResponse)", e);
    }

    
}

/**
 * 返回頁面生成table展示出來
 * @param successList
 * @return
 */
private StringBuffer createHtmlTable(){
    StringBuffer htmlText=new StringBuffer();
    htmlText.append("<table border='1' class='tableborder'><tr>"); 
    htmlText.append("<td>校驗結果</td></tr>");
    htmlText.append("</table>");
    return htmlText;
}

四、FileForm:

import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.upload.FormFile;


import javax.servlet.http.HttpServletRequest;

public class FileForm  extends ActionForm {

    private static final long serialVersionUID = 1L;
    /**
     * 導入文件
     */
    private FormFile file ;

    public FormFile getFile() {
        return file;
    }

    public void setFile(FormFile file) {
        this.file = file;
    }

    public ActionErrors validate(ActionMapping actionMapping, HttpServletRequest request) {

        ActionErrors errors = new ActionErrors();
        ActionMessage message = new ActionMessage("");
        if (null == this.file) {
            errors.add("file", message);
        }
        return errors;
    }

    public void reset(ActionMapping mapping, HttpServletRequest request) {
        try {
            request.setCharacterEncoding("utf-8");
        } catch (Exception e) {
        }
    }
}

struts.xml

<action input="" path="/import"  scope="request" name="FileForm" parameter="method"
        type="com.demo.ImportAction">
</action>