WCF File Upload

How to upload files on the WCF Client

/// <Summary> /// upload a file /// </Summary> /// <Param name = "userid"> used for verification </param> /// <param name = "extension"> extension </param> // <Param name = "shuzhu"> This is the byte array data of the file </param> // <Param name = "dbmd5"> test data </param> /// <Param name = "oldphotoname"> you can delete a previous file when uploading duplicate data. </param> /// <returns> </returns> Public String filesupload (string userid, string extension, byte [] shuzhu, string dbmd5, string oldphotoname) {string fa Llies = ""; string MSG = ""; if (UNIC. Common. Public. checkdbmd5 (userid, dbmd5, "dbpassword", out MSG) {try {If (! Public. getxmlelementvalue ("notpass "). tostring (). trim (). contains (Extension) {string temps = system. web. httpcontext. current. server. mappath ("Files"); try {If (! String. isnullorempty (oldphotoname) {If (file. exists (temps + "\" + oldphotoname) {// delete the file if the old image exists. delete (temps + "\" + oldphotoname) ;}} catch {}if (string. isnullorempty (oldphotoname. trim () {random RND = new random (); oldphotoname = datetime. now. tostring ("yyyymmddhhmmss") + RND. next (1000,999 9);} fallies = temps + "\" + oldphotoname + ". "+ extension; If (! Directory. exists (temps) directory. createdirectory (temps); file. writeallbytes (fallies, shuzhu); fallies = "files/" + oldphotoname + ". "+ extension ;}} catch {fallies =" ";}} return fallies ;}

Using the system. Io file. writeallbytes () method can save a lot of trouble.

The following is the code uploaded by the client.

If (fileuplaods. hasfile) {If (fileuplaods. filecontent. length <= int. parse (public. getxmlelementvalue ("photomaxlg "). tostring () {string filename = fileuplaods. postedfile. filename; system. io. path. getfilenamewithoutextension (fileuplaods. filename); string filelocal = system. io. path. getfullpath (fileuplaods. postedfile. filename); If (filelocal. length> 0) {string extraname = system. io. path. getextension (Fileuplaods. postedfile. filename). Replace (".", ""); try {string extstr = public. getxmlelementvalue ("notpass"); If (! Extstr. contains (extraname. tolower () {httppostedfile HP = fileuplaods. postedfile; // create an object stream sr = hp. inputstream; // create a data stream object byte [] B = new byte [fileuplaods. postedfile. contentlength]; // defines the byte array Sr. read (B, 0, fileuplaods. postedfile. contentlength); // place the image data in the B array object instance. 0 indicates the starting position of the array pointer, and uplength indicates the length of the stream to be read (the end position of the pointer) Sr. close (); Sr. dispose (); try {string accinfo = userinfocookie. usercookieinfo (). s Trsysid; // The following describes how to dynamically create a WCF Service.: Ifileuploadserv fileserv = invokecontext. createwcfservicebyurl <ifileuploadserv> (public. getxmlelementvalue ("localdpfileuploadserv"), "basichttpbinding"); savefilepacht = fileserv. filesupload (accinfo, extraname, B, dencrypt. encrypt (accinfo, public. getxmlelementvalue ("dbpassword"), "");} catch {MessageBox. show (this. page, "File Upload Failed. ") ;}} Else {MessageBox. Show (this. Page," the file format is incorrect. ") ;}} Catch (system. exception ex) {MessageBox. show (this. page, "file:" + ex. message); return ;}} else {MessageBox. show (this. page, "select file") ;}} else {MessageBox. show (this. page, "the file is too large ");}}

Finally, let's take a look at how the WCF server configuration file is configured.

<system.serviceModel>    <bindings>      <basicHttpBinding>        <binding name="BasicHttpBinding_IFileUpLoadServ" maxReceivedMessageSize="20971510">          <readerQuotas maxStringContentLength="20971520" maxArrayLength="20971520"/>          <security mode="None"/>        </binding>      </basicHttpBinding>    </bindings>    <services>      <service behaviorConfiguration="MyBehavior" name="FileUpLoadServ">        <endpoint address="" binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IFileUpLoadServ" contract="FilesServices.IFileUpLoadServ"/>        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>      </service>    </services>    <behaviors>      <serviceBehaviors>        <behavior name="MyBehavior">          <serviceMetadata httpGetEnabled="true"/>          <serviceDebug includeExceptionDetailInFaults="true"/>        </behavior>      </serviceBehaviors>    </behaviors>    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" aspNetCompatibilityEnabled="true"/>  </system.serviceModel>