Today, I developed a simple XML webservice by Drop in deployment method using axis 1.1. This method is the easiest method to create webservice. All that we have to do is to create a simple functionbean. We need not even compile it. Just place that java file in axis folder in tomcat5\webapps the current version of axis is AXIS2, but i am using AXIS1.1. Actually, I wanted to try connecting to the service from JSF 2. But JSF2 does not work in tomcat5. And axis does not work in tomcat6. Therefore I decided to try that in tomcat5. Both AXIS 1.1 and JSF1.1 will work in tomcat5. My function bean is named tourguide.java . I placed this file in tomcat5 webapps\axis as tourguide.jws.
I started tomcat5. In the browser I typed the URL as
"http://localhost:8080/axis/tourguide.jws?wsdl"
I found that wsdl was available.
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//tourguide.java
import java.util.*;
public class tourguide
{
public String showcities(String s)
{
Vector vector1 = new Vector();
if(s.equals("kerala"))
{
vector1.addElement("quilon");
vector1.addElement("tvm");
vector1.addElement("cochin");
vector1.addElement("kottayam");
}
if(s.equals("tamilnad"))
{
vector1.addElement("madurai");
vector1.addElement("trichy");
vector1.addElement("kovai");
vector1.addElement("chennai");
}
if(s.equals("karnataka"))
{
vector1.addElement("bangalore");
vector1.addElement("mangalore");
vector1.addElement("mysore");
vector1.addElement("hubli");
}
int n = vector1.size();
String r = "";
for( int j=0; j<n; j++)
{
String v = (String) vector1.elementAt(j);
r = r+v+"\n";
}
return r;
}
}
**********************************************************************
Then I created a java client program for the above webservice as shown below.
//tourjwsclient.java
import java.net.*;
import java.util.*;
import javax.xml.rpc.ParameterMode;
import org.apache.axis.client.Service;
import org.apache.axis.client.Call;
import org.apache.axis.encoding.XMLType;
public class tourjwsclient
{
public static void main(String args[])
{
try
{
System.out.println("Start");
String s1="showcities";
Service service = new Service();
System.out.println("Service ready");
Call call = (Call) service.createCall();
System.out.println("call ready");
URL url =
new URL("http://localhost:8080/axis/tourguide.jws");
call.setTargetEndpointAddress(url);
call.setOperationName(s1);
call.addParameter("name",XMLType.XSD_STRING,ParameterMode.IN);
call.setReturnType(XMLType.XSD_STRING);
String r = args[0];
// String s2=(String)call.invoke(new Object[]{r}); // important!
String vector = (String)call.invoke(new Object[]{r});
System.out.println(vector);
}catch(Exception e){System.out.println(""+e);}
}
}
***********************************************
To compile this, I placed the following jar files in classpath.
set CLASSPATH=g:\axisnew;
e:\axis11\lib\axis.jar;
e:\axis11\lib\commons-discovery.jar;
e:\axis11\lib\commons-logging.jar;
e:\axis11\lib\jaxrpc.jar;
e:\axis11\lib\saaj.jar;
e:\axis11\lib\log4j-1.2.8.jar;
e:\axis11\lib\xercesImpl.jar
I got the following result.
**********************************************
Now, I converted this main program into a functionbean(helper class). I named it as tourjwshelper.java shown below.
(As I am going to use it in jsf backing bean, I added the package statement)
// tourjwshelper.java
package mypack;
import java.net.*;
import java.util.*;
import javax.xml.rpc.ParameterMode;
import org.apache.axis.client.Service;
import org.apache.axis.client.Call;
import org.apache.axis.encoding.XMLType;
public class tourjwshelper
{
public String getcities(String s)
{
String v="";
try
{
System.out.println("Start");
String s1="showcities";
Service service = new Service();
System.out.println("Service ready");
Call call = (Call) service.createCall();
System.out.println("call ready");
URL url =
new URL("http://localhost:8080/axis/tourguide.jws");
call.setTargetEndpointAddress(url);
call.setOperationName(s1);
call.addParameter("name",XMLType.XSD_STRING,ParameterMode.IN);
call.setReturnType(XMLType.XSD_STRING);
String r = s;
// String s2=(String)call.invoke(new Object[]{r}); // important!
v = (String)call.invoke(new Object[]{r});
}catch(Exception e){System.out.println(""+e);}
return v;
}
}
**************************************
Now I create two files for jsf 1.1 (input.jsp and backer.java).
input.jsp
----------
<!DOCTYPE HTML PUBLIC
"-//W3C//DTD HTML 4.01 Transitional//EN">
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
<f:view>
<html>
<body bgcolor="cyan">
<h:form id="form1" >
<h:selectOneMenu id="operation" value="#{backer.state}">
<f:selectItem itemLabel="kerala" itemValue="kerala"/>
<f:selectItem itemLabel="tamilnad" itemValue="tamilnad"/>
<f:selectItem itemLabel="karnataka" itemValue="karnataka"/>
</h:selectOneMenu>
<h:commandButton id="button1"
action="#{backer.show}"
value="show" />
<h:inputTextarea rows="20" cols="40" id="text4" value="#{backer.result}" />
</h:form>
</body>
</html>
</f:view>
**********************************************
I created a new context in tomcat5 webapps as axistourjsfapp.
I placed the above jsp file in the root of this context. i created WEB-INF under the root. Placed web.xml and faces-config.xml inside WEB-INF
web.xml
----------
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<context-param>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>client</param-value>
</context-param>
<context-param>
<param-name>com.sun.faces.validateXml
</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>com.sun.faces.verifyObjects</param-name>
<param-value>true</param-value>
</context-param>
<!-- Faces Servlet -->
<servlet>
<servlet-name>Faces Servlet </servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet
</servlet-class>
<load-on-startup> 1 </load-on-startup>
</servlet>
<!-- Faces Servlet Mapping -->
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>
</web-app>
*******************************************
faces-config.xml
------------------------
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE faces-config PUBLIC
"-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.1//EN"
"http://java.sun.com/dtd/web-facesconfig_1_1.dtd">
<faces-config>
<application>
<locale-config>
<default-locale>en</default-locale>
</locale-config>
</application>
<managed-bean>
<managed-bean-name>backer</managed-bean-name>
<managed-bean-class>mypack.backer
</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
</managed-bean>
</faces-config>
****************************************
Now I created classes folder and lib folder under WEB-INF. I created mypack folder under classes folder. I placed the tourjwshelper.class in mypack folder. I placed the following jar files in lib folder
Now comes the code for backing bean
//backer.java
package mypack;
import javax.faces.context.*;
import javax.faces.component.*;
import javax.faces.validator.*;
public class backer
{
String result;
String state;
public void setState(String a) { state=a;}
public void setResult(String a) { result=a;}
public String getState() { return state; }
public String getResult() { return result; }
public void show()
{
tourjwshelper bean1 = new tourjwshelper();
String r=bean1.getcities(state);
setResult(r);
}
}
**********************************************
shutdown tomcat5 because we have made changes in WEB-INF
and restart. I typed the URL as
"http://localhost:8080/axistourjsfapp/faces/input.jsp"
I selected 'tamilnad' from the combo and clicked show button. I got the result in area1. Therefore, I am now happy that I am able to connect to a web service from my JSF1.1 program.
I will have to try to get similar result in JSF2.
***************************************
Web service is slow. So i did not get result for some time. And then I got it.
