wkhtmltopdf 在javaWeb中乱码的问题

我是在web项目中使用wkhtmltopdf，有时会遇到表单，所以必须要用到--post的参数
但是这个参数中加入中文，就会出现乱码。只有在post中会出现乱码，如果只是单纯的html就不会出现这个情况。

 ![图片说明](https://img-ask.csdn.net/upload/201501/21/1421832966_615937.png)

 ![图片说明](https://img-ask.csdn.net/upload/201501/21/1421833038_158586.png)


 wkhtmltopdf:

F:\wkhtmltopdf\bin\wkhtmltopdf.exe --post order.orderId 3 --post order.deliveryTime 3 --post order.productName 杨程巍 --post order.status 3 http://localhost:8080/PDFTest/create_PDF.action "F:\Tomcat 7\webapps\PDFTest\pdfFile\order.pdf"

 public String createDataPDF(){


        List<HashMap<String, String>> options=new ArrayList<HashMap<String,String>>();
        //post参数
        HashMap<String,String> orderId=new HashMap<String, String>();
        orderId.put("optionName", "--post order.orderId");
        orderId.put("optionValue",this.order.getOrderId()+"");


        HashMap<String,String> deliveryTime=new HashMap<String, String>();
        deliveryTime.put("optionName", "--post order.deliveryTime");
        deliveryTime.put("optionValue",BASE64Util.encode(this.order.getDeliveryTime()+""));


        HashMap<String,String> productName=new HashMap<String, String>();
        productName.put("optionName", "--post order.productName");
        productName.put("optionValue",BASE64Util.encode(this.order.getProductName()));


        HashMap<String,String> status=new HashMap<String, String>();
        status.put("optionName", "--post order.status");
        status.put("optionValue",BASE64Util.encode(this.order.getStatus()));

        HashMap<String,String> pageSize=new HashMap<String, String>();
        pageSize.put("optionName", "--page-size");
        pageSize.put("optionValue","a4");

        options.add(orderId);
        options.add(deliveryTime);
        options.add(productName);
        options.add(status);
        options.add(pageSize);

        this.wkhtmltopdf.setFileName("order.pdf");
        this.wkhtmltopdf.setObjectPrintUrl("http://localhost:8080/PDFTest/create_PDF.action");
        this.wkhtmltopdf.setOptions(options);


        String temp= ServletActionContext.getServletContext().getRealPath("/");
        String pdfRealyPath=temp+"pdfFile\\";
        PDFToll pdfToll=new PDFToll(this.wkhtmltopdf);
        pdfToll.createPDF(pdfRealyPath);

        return SUCCESS;
    }

 <struts>
    <!-- 设置编码格式 -->
    <constant name="struts.i18n.encoding" value="UTF-8"></constant>
    <!-- 创建 -->
    <package name="pdfTest" extends="struts-default">
        <action name="create_PDF" method="createPDF" class="com.test.action.CreatePDF">
            <result name="success">/objectPage.jsp</result>
        </action>

    <!-- 创建一个带参数的pdf -->
        <action name="create_Data_PDF" method="createDataPDF" class="com.test.action.PrintPageWithData">
            <result type="redirectAction">
                download_PDF?wkhtmltopdf.fileName=${wkhtmltopdf.fileName}
            </result>
        </action>

    <!-- 下载 -->
        <action name="download_PDF"  class="com.test.action.PDFPrint">
            <result name="success"  type="stream">
                <param name="contentType">application/pdf;charset=ISO8859-1</param>
                <param name="inputName">inputStream</param>
                <param name="contentDisposition">attachment;filename="${wkhtmltopdf.fileName}"</param>
                <param name="bufferSize">4096</param>
            </result>
        </action>
    </package>
</struts>

 //跳转到目标页面
        public String createPDF() throws UnsupportedEncodingException{


            this.order.setProductName(BASE64Util.decode(this.order.getProductName()));
            this.order.setDeliveryTime(BASE64Util.decode(this.order.getDeliveryTime()));
            this.order.setStatus(BASE64Util.decode(this.order.getStatus()));

            System.out.println(this.order.getDeliveryTime()+"\n"+BASE64Util.decode(this.order.getDeliveryTime())+"\n"+BASE64Util.getFromBASE64(this.order.getDeliveryTime()));
            return SUCCESS;
        }

ps:我用base64转了下码发现也不行，具体原因也不是很清楚，各位有没有遇到这种情况