UnitTestBase是自己写的类，代码如下

package com.imooc.test.base;

import org.junit.After;

import org.junit.Before;

import org.springframework.beans.BeansException;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import org.springframework.util.StringUtils;

public class UnitTestBase {

private ClassPathXmlApplicationContext context;

private String springXmlpath;

public UnitTestBase() {}

public UnitTestBase(String springXmlpath) {

this.springXmlpath = springXmlpath;

}

@Before

public void before() {

if (StringUtils.isEmpty(springXmlpath)) {

springXmlpath = "classpath*:spring-*.xml";

}

try {

context = new ClassPathXmlApplicationContext(springXmlpath.split("[,\\s]+"));

context.start();

} catch (BeansException e) {

e.printStackTrace();

}

}

@After

public void after() {

context.destroy();

}

@SuppressWarnings("unchecked")

protected <T extends Object> T getBean(String beanId) {

try {

return (T)context.getBean(beanId);

} catch (BeansException e) {

e.printStackTrace();

return null;

}

}

protected <T extends Object> T getBean(Class<T> clazz) {

try {

return context.getBean(clazz);

} catch (BeansException e) {

e.printStackTrace();

return null;

}

}

}