Struts与Spring集成测试--转贴

最近在学习Struts2，进行测试驱动开发，对于struts2与Spring集成的测试，Struts2给出了一个插件struts2-junit-plugin-2.1.8.1.jar，这个插件需要spring-test.jar包的支持，所有需要测试的Action类都继承StrutsSpringTestCase。这个测试要求只能用个application.xml文件，而且必须放到类路径根目录下面。在我们开发中往往编写许多以application开头的部署文件，一般也不在类路径下面存放，例如我一般习惯在WEB-INF目录下建立一个config文件夹，将spring的部署文件都放到config文件夹下面。但是用StrutsSpringTestCase类不能解决改问题，我查看了一下StrutsSpringTestCase的原代码，代码如下：

Java代码
public abstract class StrutsSpringTestCase extends StrutsTestCase {  
    private static final String DEFAULT_CONTEXT_LOCATION = "classpath*:applicationContext.xml";  
    protected static ApplicationContext applicationContext;  
 
 
    protected void setupBeforeInitDispatcher() throws Exception {  
        //init context  
        GenericXmlContextLoader xmlContextLoader = new GenericXmlContextLoader();  
        applicationContext = xmlContextLoader.loadContext(getContextLocations());  
        servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, applicationContext);  
    }  
 
    protected String getContextLocations() {  
        return DEFAULT_CONTEXT_LOCATION;  
    }  
} 

public abstract class StrutsSpringTestCase extends StrutsTestCase {
    private static final String DEFAULT_CONTEXT_LOCATION = "classpath*:applicationContext.xml";
    protected static ApplicationContext applicationContext;


    protected void setupBeforeInitDispatcher() throws Exception {
        //init context
        GenericXmlContextLoader xmlContextLoader = new GenericXmlContextLoader();
        applicationContext = xmlContextLoader.loadContext(getContextLocations());
        servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, applicationContext);
    }

    protected String getContextLocations() {
        return DEFAULT_CONTEXT_LOCATION;
    }
}     我们只要写一个继承类，重载setupBeforeInitDispatcher()方法就可以解决改问题了，如果我们有两个配置文件applicationContext.xml、applicationContext-other.xml,我们就可以这样写：

Java代码
@Override 
protected void setupBeforeInitDispatcher() throws Exception {  
     GenericXmlContextLoader xmlContextLoader = new GenericXmlContextLoader();  
     applicationContext = xmlContextLoader.loadContext(new String[]{"applicationContext.xml,","applicationContext-other.xml,"});  
     servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, applicationContext);  
} 

   @Override
    protected void setupBeforeInitDispatcher() throws Exception {
        GenericXmlContextLoader xmlContextLoader = new GenericXmlContextLoader();
        applicationContext = xmlContextLoader.loadContext(new String[]{"applicationContext.xml,","applicationContext-other.xml,"});
        servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, applicationContext);
    }       这样我们就解决了多个配置文件的问题，但是还有一个，我们一开始也不能确定有几个配置文件，这个方法还是不通用，需要再次重构，这样，我决定写一个方法，从config文件下读取文件，所有以application开通的文件组成一个字符串数组，这样就不需要修改改类了。代码如下：

Java代码
public class SpringBeanFactoryMock extends StrutsSpringTestCase {  
    @Override 
    public void setUp() throws Exception {  
        super.setUp();  
    }  
    @Override 
    protected void setupBeforeInitDispatcher() throws Exception {  
        GenericXmlContextLoader xmlContextLoader = new GenericXmlContextLoader();  
        applicationContext = xmlContextLoader.loadContext(getContextLocation());  
        servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, applicationContext);  
    }  
    public String[] getContextLocation(){  
        URL classUrl = SpringBeanFactoryMock.class.getResource("");  
        String path = classUrl.getPath();  
        try {  
            path = URLDecoder.decode(path, "UTF-8");  
        } catch (UnsupportedEncodingException e) {  
            e.printStackTrace();  
        }  
        path =  path.substring(1 , path.indexOf("WEB-INF"))+ "WEB-INF/";  
        File configPath = new File(path);  
        String[] applicationContexts = configPath.list(new FilenameFilter(){  
            public boolean accept(File dir, String name){  
                if(name.toLowerCase().startsWith("applicationcontext")){  
                    return true;  
                }  
                return false;  
            }                 
        });           
        for(int i=0;i<applicationContexts.length;i++){  
            applicationContexts[i] = "file:"+path +  applicationContexts[i];  
        }  
        return applicationContexts;  
    }  
} 

public class SpringBeanFactoryMock extends StrutsSpringTestCase {
@Override
public void setUp() throws Exception {
super.setUp();
}
@Override
    protected void setupBeforeInitDispatcher() throws Exception {
        GenericXmlContextLoader xmlContextLoader = new GenericXmlContextLoader();
        applicationContext = xmlContextLoader.loadContext(getContextLocation());
        servletContext.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, applicationContext);
    }
public String[] getContextLocation(){
URL classUrl = SpringBeanFactoryMock.class.getResource("");
String path = classUrl.getPath();
try {
path = URLDecoder.decode(path, "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
path =  path.substring(1 , path.indexOf("WEB-INF"))+ "WEB-INF/";
File configPath = new File(path);
String[] applicationContexts = configPath.list(new FilenameFilter(){
public boolean accept(File dir, String name){
if(name.toLowerCase().startsWith("applicationcontext")){
return true;
}
return false;
}
});
for(int i=0;i<applicationContexts.length;i++){
applicationContexts[i] = "file:"+path +  applicationContexts[i];
}
return applicationContexts;
}
}

    以后我们测试Struts2的Action类时候，只要继承SpringBeanFactoryMock类就可以了。