C # Development Client, Java, and Tomcat development server

Hessian Introduction, hello and file upload example, C # client +java tomcat background

2.Hello Example
1) Backstage-Define Java interface:
Package Org.migle.hessian;
Public interface Hello {
public string SayHello (String smt);
public void Printhello (String SMT);
}
2) Backstage--Implement Java interface:
Package Org.migle.hessian.impl;
Import Org.migle.hessian.Hello;
public class Helloimpl implements Hello {
public string SayHello (String smt) {
return SMT! = null? "Hello" + SMT: "Hello Hessian";
}
public void Printhello (String SMT) {
System.out.println ("Hello" + SMT);
}
}
3) Backstage-configuration Tomcat/hessianserver/web-inf/web.xml, if Lib contains Hessian-4.0.7.jar:
<?xml version= "1.0" encoding= "UTF-8"?>
<web-app xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance" xmlns= "Http://java.sun.com/xml/ns/javaee" xmlns : web= "http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemalocation= "http://java.sun.com/xml/ns/ Javaeehttp://java.sun.com/xml/ns/javaee/web-app_2_5.xsd "id=" webapp_id "version=" 2.5 ">
<display-name>hessian</display-name>
<servlet>
<servlet-name>hessian</servlet-name>
<servlet-class>com.caucho.hessian.server.HessianServlet</servlet-class>
<init-param>
<param-name>service-class</param-name>
<param-value>org.migle.hessian.impl.HelloImpl</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>hessian</servlet-name>
<url-pattern>/hessian</url-pattern>
</servlet-mapping>
</web-app>
4) Front--c# code, define interface:
Using System;
Using System.Collections.Generic;
Using System.Linq;
Using System.Text;
Using System.IO;

Namespace WindowsFormsApplication3
{
public interface Hello
{

String SayHello (String smt);
void Printhello (String smt);
}
}
5) foreground--c# code, implement remote Call Java class, precondition is reference hessianCsharp.dll:
......
Using Hessiancsharp.client;
Using Hessiancsharp.io;

Namespace WindowsFormsApplication3
{
public partial class Form1:form
{
Public Form1 ()
{
InitializeComponent ();
}

private void Button1_Click (object sender, EventArgs e)
{
String url = "Http://localhost/HessianServer/hessian";
Chessianproxyfactory factory = new Chessianproxyfactory ();

Hello test = (hello) factory. Create (typeof (Hello), URL);
MessageBox.Show (Test.sayhello ("Migle"));//print a string obtained from the server side
Test.printhello ("Hessian"); Print "Hello Hessian" on the server-side console
}
......
6) Run the C # program.

3. File Upload example, implemented on 2 basis
1) Backstage-Define Java interface:
Package Org.migle.hessian;
Import Java.io.InputStream;
Public interface UploadFile {
public boolean uploadfile (String fileName, inputstream data);
}
2) Backstage--Implement Java interface:
Package Org.migle.hessian.impl;
Import java.io.FileNotFoundException;
Import Java.io.FileOutputStream;
Import java.io.IOException;
Import Java.io.InputStream;
Import Java.io.OutputStream;
Import Org.migle.hessian.UploadFile;
public class Uploadfileimpl implements UploadFile {

@Override
public boolean uploadfile (String fileName, InputStream in) {
Try
{
OutputStream out = new FileOutputStream ("d:/temp/" +filename);
int nlength = 0;
byte[] bdata = new byte[1024];
while ( -1!= (Nlength=in.read (bdata)))
{
Out.write (bdata, 0, nlength);
}

Out.close ();
return true;
} catch (FileNotFoundException e) {
E.printstacktrace ();
return false;
} catch (IOException e) {
E.printstacktrace ();
return false;
}
Finally
{
try {
In.close ();
} catch (IOException e) {
E.printstacktrace ();
}
}
}
}
3) Backstage--Configure Tomcat/hessianserver/web-inf/web.xml, add a servlet:
......
<servlet>
<servlet-name>upload</servlet-name>
<servlet-class>com.caucho.hessian.server.HessianServlet</servlet-class>
<init-param>
<param-name>service-class</param-name>
<param-value>org.migle.hessian.impl.UploadFileImpl</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>upload</servlet-name>
<url-pattern>/upload</url-pattern>
</servlet-mapping>
......
4) Front--c# code, define interface:
Using System;
Using System.Collections.Generic;
Using System.Linq;
Using System.Text;
Using System.IO;

Namespace WindowsFormsApplication3
{
public interface Hello
{

String SayHello (String smt);
void Printhello (String smt);
}

public interface UploadFile//This is a new part of the interface on the Hello basis
{
BOOL UploadFile (String fileName, Stream sroutput);
}
}
5) foreground--c# code, realize the remote Call Java class, on the basis of Hello example, add an upload file Event response processing:
......
private void Buttonupload_click (object sender, EventArgs e)
{
Stream OS = new FileStream (Textboxupload.text, FileMode.Open, FileAccess.Read);

String url = "Http://localhost/HessianServer/upload";
Chessianproxyfactory factory = new Chessianproxyfactory ();
UploadFile test = (UploadFile) factory. Create (typeof (UploadFile), URL);
Test.uploadfile ("Test.xml", OS);
MessageBox.Show ("222");
Os. Close ();
}
......

C # Development Client, Java, and Tomcat development server