PDF文件的读写

Jxdwuao

遇到将二进制数据显示出来变成 PDF 文件的问题。 其实就是把二进制数据，使用 FileOutputStream 流写入文件之中。
 
DB2 数据库中是Blob数据类型 ，需要 转换成 byte[] 二进制。
 
public static byte[] ePolicyDBlobToByte(TPolicyElectron policyEl) {BufferedInputStream is = null;byte[] bytes = null;try {is = new BufferedInputStream(policyEl.getPolicyContent().getBinaryStream());bytes = new byte[(int) policyEl.getPolicyContent().length()];int len = bytes.length;int offset = 0;int read = 0;while (offset < len&& (read = is.read(bytes, offset, len - offset)) >= 0) {offset += read;}} catch (Exception e) {log.error("Hm接口错误:PDF转换Byte错误" + e);return null;}return bytes;} 
byte[] ePolicyPdf = HmTempPersistent.ePolicyDBlobToByte(xx);try {FileOutputStream out = new FileOutputStream(new File("D:\\test.pdf"));out.write(ePolicyPdf);} catch (FileNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}