让axis1.4与spring集成，去掉累赘层~
对于axis1.4来说，我们常用wsdd的方式来发布服务。下面先看下我们是如何使用的。
定义一个服务类
package com.sunsharing.axistest; public class HelloWordService { public String sayHello(String person){ return "hello ," + person; } }使用wsdd暴露服务以及方法
<deployment xmlns="http://xml.apache.org/axis/wsdd/" xmlns:java="http://xml.apache.org/axis/wsdd/providers/java"> <handler name="URLMapper" type="java:org.apache.axis.handlers.http.URLMapper" /> <service name="helloWordService " provider="java:RPC"> <parameter name="className" value="com.sunsharing.axistest.HelloWordService " /> </service> <transport name="http"> <requestFlow> <handler type="URLMapper" /> </requestFlow> </transport> </deployment>
这已经把服务暴露出来了。
接下来，妹子可能会问你，能不能从我传入的person找到它存储在数据库的详细信息，多输出点信息呢？于是乎，你又定义了一个spring的service，就简单的jdbcTemplate来查询想满足妹子吧。
@Service
public class SpringHelloWordService {
@Autowired
JdbcTemplate jdbcTemplate;
public String sayHello(String person){
//这个打印为了看是不是spring托管的service，是的话，jdbcTemplate应该不为空，有注入
System.out.println(jdbcTemplate);
return "hello,"+person;
}
}
继续之前的做法，往wsdd再配置个service
<service name="springHelloWordService" provider="java:RPC"> <parameter name="className" value="com.sunsharing.axistest.SpringHelloWordService" /> </service>
呵呵，这样做的话，你的jdbcTemplate肯定是空指针！！！，这个className是axis自己new出来的。你还是再想想办法吧。
这时候，你一想，那我就写在之前定义好的HelloWordService，进行调用spring的服务不就好了。修改下HelloWordService。
public class HelloWordService {
public String sayHello(String person){
//ServiceLocator是我们系统初始自定义的获取spring bean的辅助类
SpringHelloWordService service = (SpringHelloWordService)ServiceLocator.getBean("springHelloWordService");
return service.sayHello(person);
}
}
好像一切都做完了，妹子的要求也满足了。不过对于喜欢偷懒的程序猿来说，总觉得好累，为什么不直接把spring的service直接暴露出来就好了，还多这么一层，真是累啊~~~
稍微看了下源码，wsdd的方式部署中，有个provider。再看看，就从它入手，定义一个SpringProvider（网上copy的，修改了下getServiceClass）
package com.sunsharing.axistest;
import org.apache.axis.AxisFault;
import org.apache.axis.Handler;
import org.apache.axis.MessageContext;
import org.apache.axis.components.logger.LogFactory;
import org.apache.axis.handlers.soap.SOAPService;
import org.apache.axis.providers.java.RPCProvider;
import org.apache.axis.transport.http.HTTPConstants;
import org.apache.commons.logging.Log;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.XmlWebApplicationContext;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServlet;
public class SpringProvider extends RPCProvider {
protected static Log log =
LogFactory.getLog(SpringProvider.class.getName());
public static final String OPTION_BEANNAME = "beanName";
protected Object makeNewServiceObject(MessageContext msgContext, String clsName) throws Exception {
String beanName = getStrOption(OPTION_BEANNAME, msgContext.getService());
return getService(beanName, msgContext);
}
protected String getServiceClassNameOptionName() {
return OPTION_BEANNAME;
}
protected Object getService(String beanName, MessageContext context) throws AxisFault {
ApplicationContext appContext = getAppContext(context);
if (appContext == null) {
log.fatal("Spring ApplicationContext is NULL.");
throw new AxisFault("get Spring ApplicationContext error.");
}
Object bean = appContext.getBean(beanName);
if (bean == null) {
log.error("bean named:" + beanName + " is NULL");
throw new AxisFault("bean named:" + beanName + " is NULL");
}
return bean;
}
protected String getStrOption(String optionName, Handler service) {
String value = null;
if (service != null)
value = (String) service.getOption(optionName);
if (value == null)
value = (String) getOption(optionName);
return value;
}
protected Class getServiceClass(String beanName, SOAPService service, MessageContext msgContext) throws AxisFault {
// ConfigurableListableBeanFactory beanFactory = getBeanFactory(msgContext);
// if (beanFactory == null) {
// log.error("BeanFactory is NULL");
// throw new AxisFault("BeanFactory is NULL");
// }
// Object bean = beanFactory.getBeanDefinition(beanName);
// return bean.getClass();
Object bean = getService(beanName,msgContext);
return bean.getClass();
}
protected XmlWebApplicationContext getAppContext(MessageContext msgContext) {
HttpServlet servlet = (HttpServlet) msgContext.getProperty(HTTPConstants.MC_HTTP_SERVLET);
ServletContext servletContext = servlet.getServletContext();
XmlWebApplicationContext appContext = (XmlWebApplicationContext) servletContext
.getAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
return appContext;
}
private final ConfigurableListableBeanFactory getBeanFactory(MessageContext msgContext) {
XmlWebApplicationContext appContext = getAppContext(msgContext);
return appContext.getBeanFactory();
}
}
再定义一个wsdd的provider,WSDDJavaSpringProvider
public class WSDDJavaSpringProvider extends WSDDProvider {
public static final String PROVIDER_RPC = "SPRING";
public static final QName QNAME = new QName(WSDDConstants.URI_WSDD_JAVA, PROVIDER_RPC);
/**
* @param service
* @param registry XXX
* @return XXX
* @throws Exception XXX
*/
@Override
public Handler newProviderInstance(WSDDService service, EngineConfiguration registry) throws Exception {
return new SpringProvider();
}
@Override
public String getName() {
return PROVIDER_RPC;
}
}
wsdd再配置个service，请注意allowedMethods，可能你不想把spring service的所有方法暴露，那么可以在此配置声明要暴露出来的方法，用英文逗号隔开即可。
<service name="springHelloWordService" provider="java:SPRING"> <parameter name="beanName" value="springHelloWordService" /> <parameter name="allowedMethods" value="sayHello" /> </service>
还缺少一个重要的事情，就是注册provider，好的，就这么干，在系统启动时候加上注册（注意注册的方法一定要在AxisServlet初始化之前执行，load-on-startup调大点，下面是web.xml对axisServlet的配置和注册的语句）
<servlet> <servlet-name>AxisServlet</servlet-name> <servlet-class>org.apache.axis.transport.http.AxisServlet</servlet-class> <load-on-startup>6</load-on-startup> </servlet> <servlet-mapping> <servlet-name>AxisServlet</servlet-name> <url-pattern>/services/*</url-pattern> </servlet-mapping>
WSDDProvider.registerProvider(WSDDJavaSpringProvider.QNAME,new WSDDJavaSpringProvider());
启动~~~访问看看吧~