实现原理：通过传递服务bean的名称、执行的方法及参数，通过反射机制进行调用返回。
优点：只需对外提供一个接口服务即可，只要容器中操作服务bean,通过接口即可调用，增加服务bean无需增加对外接口。
代码如下：
接口类
public interface proxyservice {
/**
* webservice调用代理
* @param beanname bean或类名
* @param functionname 调用的函数名
* @param params 参数
* @return
* @throws exception
*/
object proxy(string beanname, string functionname,string… params) throws exception;
}
实现类：
服务基于spring,为了方便获取服务bean,实现类实现spring的'applicationcontextaware接口
@service
public class proxyserviceimpl implements proxyservice ,applicationcontextaware{
protected final logger logger = ger(getclass());
@resource
private applicationcontext applicationcontext;
@override
public void setapplicationcontext(applicationcontext applicationcontext) throws beansexception {
ationcontext = applicationcontext;
}
/**
* 通过代理执行业务方法，方法数据
*/
@suppresswarnings("rawtypes")
@override
public object proxy(string beanname, string functionname, string… params) throws serviceexception {
//参数判断
if(y(beanname)){
throw new exception("error: beanname is empty.");
}
if(y(functionname)){
throw new exception("error: functionname is empty.");
}
//获取服务bean
object bean = getbean(beanname);
if(bean == null){
throw new exception("error: bean is not exist.");
}
if(params == null || ==0){
("proxy params is empty.");
}
method method = null;
//处理无参数调用
if(params == null || ==0){
try {
//获取服务bean方法
method = ss()。getmethod(functionname);
} catch (securityexception e) {
("proxy getmethod securityexception:"+sage());
tacktrace();
} catch (exception e) {
("proxy invoke illegalargumentexception:"+sage());
tacktrace();
throw new exception("error: get method exception:"+sage());
}
}else{
//处理有参数调用
//处理调用方法参数
class[] paratypes = new class[];
for (int i = 0; i < ; i++) {
paratypes[i] = ;
}
//获取服务bean方法
method = ss()。getmethod(functionname, paratypes);
}catch (exception e) {
("proxy invoke illegalargumentexception:"+sage());
tacktrace();
throw new exception("error: get method exception:"+sage());
}
}
if(method == null ){
throw new exception("error: function is not exist.");
}
object rs = null;
try {
//调用返回数据
rs = (bean,params);
} catch (exception e) {
("proxy invoke illegalargumentexception:"+sage());
tacktrace();
throw new exception("error: invoke method exception:"+sage());
}
return rs;
}
/**
* 获取bean对象
* @param beanname
* @return
*/
private object getbean(string beanname){
object bean = null;
bean = n(beanname);
if(bean == null){
try {
class classe = e(beanname);
bean = tance();
} catch (instantiationexception e) {
("getbean instantiationexception:"+sage());
tacktrace();
} catch (illegalaccessexception e) {
("getbean illegalaccessexception:"+sage());
tacktrace();
}catch ( classnotfoundexception e) {
("getbean classnotfoundexception:"+sage());
