Expose liferay web services

Hi
In this tutorial I will discuss how to expose liferay web services

Here I am using sql server
portal-ext.properties file

jdbc.default.driverClassName=net.sourceforge.jtds.jdbc.Driver
jdbc.default.url=jdbc:jtds:sqlserver://localhost/spadnew
jdbc.default.username=sa
jdbc.default.password=root

To access  JSON web services Using IP address  add the below configuration in portal-ext.properties

---------------------------------------

auth.token.check.enabled=false

json.service.auth.token.enabled=false

axis.servlet.hosts.allowed=192.168.3.12, 127.0.0.1, SERVER_IP

Add the below jar file in  TOMCAT_SERVER}/lib/ext)

cors-filter-1.3.2.jar

java-property-utils-1.7.1

After that, you have to restart your Tomcat Server instance.

These are the configuration for access web service 

we have to also add some content to our web.xml 

Here we have two web.xml

one is visible inside our project in eclipse

and the path of this is

WorkSpace\liferay-portal-6.2-ee-sp14\tomcat-7.0.62\webapps\gallery-portlet\WEB-INF\web.xml

We have another web.xml which is created by exlipse (may be)

F:\LiferayWorkSpaces\WorkSpace\liferay-portal-6.2-ce-ga2\tomcat-7.0.42\webapps\ROOT\WEB-INF\web.xml

content that we have to paste inside web.xml is 

If you want to use Liferay RestFull API through AJAX calls (or jQuery JSon calls).

You have to set Cors Filter in web.xml of Liferay ROOT on the server.

This is the code for web.xml

<!-- CorsFilter per call Rest API in AJAX/jQuery-->

<filter>

<filter-name>CORS</filter-name>

<filter-class>com.thetransactioncompany.cors.CORSFilter</filter-class>

<init-param>

<param-name>cors.allowOrigin</param-name>

<param-value>*</param-value>

</init-param>

<init-param>

<param-name>cors.supportedMethods</param-name>

<param-value>GET, POST, HEAD, PUT, DELETE</param-value>

</init-param>

<init-param>

<param-name>cors.supportedHeaders</param-name>

<param-value>Accept, Origin, X-Requested-With, Content-Type, 

Last-Modified, Access-Control-Request-Method, Access-Control-Request-Headers</param-value>

</init-param>

<init-param>

<param-name>cors.exposedHeaders</param-name>

<param-value>Set-Cookie</param-value>

</init-param>

<init-param>

<param-name>cors.supportsCredentials</param-name>

<param-value>true</param-value>

</init-param>

</filter>

<filter-mapping>

<filter-name>CORS</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

Than, you have to import in ${TOMCAT_SERVER}/lib/ (or better ${TOMCAT_SERVER}/lib/ext) this two jars:

cors-filter-1.3.2.jar

java-property-utils-1.6.jar

After that, you have to restart your Tomcat Server instance.

If we want to access through url without sign in then it throws error

to avoid this error we have to give some annotation to our method

Suppose we have an entity Complaints

so we have to write our method that is exposed by liferay is

ComplaintsSeviceImpl.java

@AccessControlled(guestAccessEnabled=true)

 @JSONWebService(value = "getOpenAndClosedComp", method = "GET")

 public JSONObject getOpenAndClosedComp() 

   throws SystemException {

   }

   

   

   hit url : http://10.35.115.177:8080/api/jsonws

   

   from context path drop down we have to select our portlet

   then it will display list of methods that we created in our impl class.

   In this case our method name is "getOpenAndClosedComp"