webService怎么调用Service

野性酷女 2022-07-13 02:52 122阅读 0赞

首先需要webService获取Spring容器中的一个bean  
先写一个工具类用于专门获取Spring容器中的bean的，代码如下

/** * Copyright © 2012-2016 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved. */
    package com.elvis.common.utils;
    
    import org.apache.commons.lang3.Validate;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.DisposableBean;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.ApplicationContextAware;
    import org.springframework.context.annotation.Lazy;
    import org.springframework.stereotype.Service;
    
    
    /** * 以静态变量保存Spring ApplicationContext, 可在任何代码任何地方任何时候取出ApplicaitonContext. * */
    @Service
    @Lazy(false)
    public class SpringContextHolder implements ApplicationContextAware, DisposableBean { 
    
        private static ApplicationContext applicationContext = null;
    
        private static Logger logger = LoggerFactory.getLogger(SpringContextHolder.class);
    
        /** * 取得存储在静态变量中的ApplicationContext. */
        public static ApplicationContext getApplicationContext() {
            assertContextInjected();
            return applicationContext;
        }
    
        /** * 从静态变量applicationContext中取得Bean, 自动转型为所赋值对象的类型. */
        @SuppressWarnings("unchecked")
        public static <T> T getBean(String name) {
            assertContextInjected();
            return (T) applicationContext.getBean(name);
        }
    
        /** * 从静态变量applicationContext中取得Bean, 自动转型为所赋值对象的类型. */
        public static <T> T getBean(Class<T> requiredType) {
            assertContextInjected();
            return applicationContext.getBean(requiredType);
        }
    
        /** * 清除SpringContextHolder中的ApplicationContext为Null. */
        public static void clearHolder() {
            if (logger.isDebugEnabled()){
                logger.debug("清除SpringContextHolder中的ApplicationContext:" + applicationContext);
            }
            applicationContext = null;
        }
    
        /** * 实现ApplicationContextAware接口, 注入Context到静态变量中. */
        @Override
        public void setApplicationContext(ApplicationContext applicationContext) {
            SpringContextHolder.applicationContext = applicationContext;
        }
    
        /** * 实现DisposableBean接口, 在Context关闭时清理静态变量. */
        @Override
        public void destroy() throws Exception {
            SpringContextHolder.clearHolder();
        }
    
        /** * 检查ApplicationContext不为空. */
        private static void assertContextInjected() {
            Validate.validState(applicationContext != null, "applicaitonContext属性未注入, 请在applicationContext.xml中定义SpringContextHolder.");
        }
    }

然后要获取Service时，使用这个类去获取这个bean，具体代码如下

//你需要调用的Service
    ImoocService imoocService = SpringContextHolder.getApplicationContext().getBean(ImoocService.class);
                imoocService.add(imooc);

这样webService就可以调用Service了