Liferay7 BPM门户开发之34: liferay7对外服务类生成（RestService Get Url）

在liferay7中开发不依赖Service Builder的对外服务类，非常简洁，只需要2点注解：

在类的前部定义：

　　@ApplicationPath("/PathXXX")

方法前定义：

　　@GET
　　@Path("/ActionXXX")
　　@Produces("text/plain")

例子：得到注册用户

import com.liferay.portal.kernel.model.User;

import com.liferay.portal.kernel.service.UserLocalService;

import java.util.Collections;

import java.util.Set;

import javax.ws.rs.ApplicationPath;

import javax.ws.rs.GET;

import javax.ws.rs.Path;

import javax.ws.rs.Produces;

import javax.ws.rs.core.Application;

import org.osgi.service.component.annotations.Component;

import org.osgi.service.component.annotations.Reference;

@ApplicationPath("/allUsers")

@Component(

    immediate = true, property = {"jaxrs.application=true"},

    service = Application.class

)

public class UsersRestService extends Application {

    @Override

    public Set<Object> getSingletons() {

        return Collections.singleton((Object)this);

    }

    @GET

    @Path("/list")

    @Produces("text/plain")

    public String getAllUsers() {

        StringBuilder result = new StringBuilder();

        for (User user : _userLocalService.getUsers(-, -)) {

            result.append(user.getFullName()).append(",\n");

        }

        return result.toString();

    }

    @Reference

    public void setUserLocalService(UserLocalService userLocalService) {

        _userLocalService = userLocalService;

    }

    private UserLocalService _userLocalService;

}

osgi语法真是简洁。