java依据模板修改内容后，生成word，修改后内容中文乱码

package com.sunyard.test;import java.io.File;import java.io.FileInputStream;import java.io.FileWriter;import java.io.IOException;import java.io.InputStream;import java.io.PrintWriter;import java.io.UnsupportedEncodingException;import java.text.SimpleDateFormat;import java.util.Date;public class OperatorRTF {    /**     * 字符串转换为rtf编码     *      * @param content     * @return     */    public String strToRtf(String content) {        try {            System.out.println(content);            content=new String(content.getBytes(),"GB2312");            System.out.println(content);        } catch (UnsupportedEncodingException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }        char[] digital = "0123456789ABCDEF".toCharArray();        StringBuffer sb = new StringBuffer("");        byte[] bs = null;        bs = content.getBytes();        int bit;        for (int i = 0; i < bs.length; i++) {            bit = (bs[i] & 0x0f0) >> 4;            sb.append("\\'");            sb.append(digital[bit]);            bit = bs[i] & 0x0f;            sb.append(digital[bit]);        }        return sb.toString();    }    /**     * 替换文档的可变部分     *      * @param content     * @param replacecontent     * @param flag     * @return     */    public String replaceRTF(String content, String replacecontent, int flag) {        String rc = strToRtf(replacecontent);        String target = "";        System.out.println(rc);        if (flag == 0) {            target = content.replace("$timetop$", rc);        }        if (flag == 1) {            target = content.replace("$info$", rc);        }        if (flag == 2) {            target = content.replace("$idea$", rc);        }        if (flag == 3) {            target = content.replace("$advice$", rc);        }        if (flag == 4) {            target = content.replace("$infosend$", rc);        }        return target;    }    /**     * 获取文件路径     *      * @param flag     * @return     */    public String getSavePath() {        String path = "D:\\";        File fDirecotry = new File(path);        if (!fDirecotry.exists()) {            fDirecotry.mkdirs();        }        return path;    }    /**     * 半角转为全角     */    public String ToSBC(String input) {        char[] c = input.toCharArray();        for (int i = 0; i < c.length; i++) {            if (c[i] == 32) {                c[i] = (char) 12288;                continue;            }            if (c[i] < 127) {                c[i] = (char) (c[i] + 65248);            }        }        return new String(c);    }    public void rgModel(String username, String content) {        /* 构建生成文件名 targetname:12时10分23秒_username_记录.rtf */        Date current = new Date();        SimpleDateFormat sdf = new java.text.SimpleDateFormat(                "yyyy-MM-dd HH:mm:ss");        String targetname = sdf.format(current).substring(11, 13) + "时";        targetname += sdf.format(current).substring(14, 16) + "分";        targetname += sdf.format(current).substring(17, 19) + "秒";        targetname += "_" + username + "_记录.doc";                /* 字节形式读取模板文件内容,将结果转为字符串 */        String strpath = getSavePath();        String sourname = strpath + "\\" + "档案利用登记单.rtf";        String sourcecontent = "";        InputStream ins = null;        try {            ins = new FileInputStream(sourname);            byte[] b = new byte[1024];            if (ins == null) {                System.out.println("源模板文件不存在");            }            int bytesRead = 0;            while (true) {                bytesRead = ins.read(b, 0, 1024); // return final read bytes                // counts                if (bytesRead == -1) {// end of InputStream                    System.out.println("读取模板文件结束");                    break;                }                // convert to string using bytes                sourcecontent += new String(b, 0, bytesRead);                             }        } catch (Exception e) {            e.printStackTrace();        }                /* 修改变化部分 */        String targetcontent = "";        /**         * 拆分之后的数组元素与模板中的标识符对应关系 array[0]:timetop array[1]:info array[2]:idea         * array[3]:advice array[4]:infosend         */        String array[] = content.split("~");        // 2008年11月27日：更新模板之后时间无需自动填充        for (int i = 0; i < array.length; i++) {            if (i == 0) {                targetcontent = replaceRTF(sourcecontent, array[i], i);            } else {                targetcontent = replaceRTF(targetcontent, array[i], i);            }        }        /* 结果输出保存到文件 */        try {            FileWriter fw = new FileWriter(getSavePath() + "\\" + targetname,                    true);            PrintWriter out = new PrintWriter(fw);            System.out.println(targetcontent);            if (targetcontent.equals("") || targetcontent == "") {                out.println(sourcecontent);            } else {                out.println(targetcontent);            }            out.close();            fw.close();            System.out.println(getSavePath() + "  该目录下生成文件" + targetname                    + " 成功");        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }    public static void main(String[] args) {        OperatorRTF oRTF = new OperatorRTF();        // 被替换内容以"~"符号分割,处理的时候将其拆分为数组即可        String content = "2008Y10M12D9H-2008Y10M12D6H~idea~look~我们参照检验药品的方法~we";        oRTF.rgModel("cheney", content);    }}