@ContextConfiguration(locations={"/resources/applicationContext.xml"})
public class Test
{
@Autowired
private UserService userService;
@org.junit.Test
public void hasMatchUser()
{
boolean b1 = userService.hasMatchUser("admin", "123456");
boolean b2 = userService.hasMatchUser("admin", "1111");
assertTrue(b1);
assertTrue(!b2);
}
@org.junit.Test
public void findUserByClientName()
{
User user = userService.findUserByUserName("admin");
assertEquals(user.getUserName(), "admin");
}
}
通過測試類debug 類CacheAwareContextLoaderDelegate
public ApplicationContext loadContext(MergedContextConfiguration mergedContextConfiguration) {
synchronized (this.contextCache) {
ApplicationContext context = this.contextCache.get(mergedContextConfiguration);
if (context == null) {
try {
context = loadContextInternal(mergedContextConfiguration);
if (logger.isDebugEnabled()) {
logger.debug(String.format("Storing ApplicationContext in cache under key [%s]",
mergedContextConfiguration));
}
this.contextCache.put(mergedContextConfiguration, context);
}
catch (Exception ex) {
throw new IllegalStateException("Failed to load ApplicationContext", ex);
}
}
else {
if (logger.isDebugEnabled()) {
logger.debug(String.format("Retrieved ApplicationContext from cache with key [%s]",
mergedContextConfiguration));
}
}
if (statsLogger.isDebugEnabled()) {
statsLogger.debug("Spring test ApplicationContext cache statistics: " + this.contextCache);
}
return context;
}
}
類 AbstractGenericContextLoader
public final ConfigurableApplicationContext loadContext(MergedContextConfiguration mergedConfig) throws Exception {
if (logger.isDebugEnabled()) {
logger.debug(String.format("Loading ApplicationContext for merged context configuration [%s].",
mergedConfig));
}
GenericApplicationContext context = new GenericApplicationContext();
ApplicationContext parent = mergedConfig.getParentApplicationContext();
if (parent != null) {
context.setParent(parent);
}
prepareContext(context);
prepareContext(context, mergedConfig);
customizeBeanFactory(context.getDefaultListableBeanFactory());
loadBeanDefinitions(context, mergedConfig);
AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
customizeContext(context);
context.refresh();
context.registerShutdownHook();
return context;
}
public class GenericXmlContextLoader extends AbstractGenericContextLoader {
/**
* Create a new {@link XmlBeanDefinitionReader}.
* @return a new XmlBeanDefinitionReader
* @see XmlBeanDefinitionReader
*/
@Override
protected BeanDefinitionReader createBeanDefinitionReader(final GenericApplicationContext context) {
return new XmlBeanDefinitionReader(context);
}
/**
* Returns "{@code -context.xml}".
*/
@Override
public String getResourceSuffix() {
return "-context.xml";
}
}
//locations值爲：[classpath:/resources/applicationContext.xml]
public int loadBeanDefinitions(String... locations) throws BeanDefinitionStoreException {
Assert.notNull(locations, "Location array must not be null");
int counter = 0;
for (String location : locations) {
counter += loadBeanDefinitions(location);
}
return counter;
}
由類PathMatchingResourcePatternResolver解析資源路徑
public Resource[] getResources(String locationPattern) throws IOException {
Assert.notNull(locationPattern, "Location pattern must not be null");
if (locationPattern.startsWith(CLASSPATH_ALL_URL_PREFIX)) {
// a class path resource (multiple resources for same name possible)
if (getPathMatcher().isPattern(locationPattern.substring(CLASSPATH_ALL_URL_PREFIX.length()))) {
// a class path resource pattern
return findPathMatchingResources(locationPattern);
}
else {
// all class path resources with the given name
return findAllClassPathResources(locationPattern.substring(CLASSPATH_ALL_URL_PREFIX.length()));
}
}
else {
// Only look for a pattern after a prefix here
// (to not get fooled by a pattern symbol in a strange prefix).
int prefixEnd = locationPattern.indexOf(":") + 1;
if (getPathMatcher().isPattern(locationPattern.substring(prefixEnd))) {
// a file pattern
return findPathMatchingResources(locationPattern);
}
else {
// a single resource with the given name
return new Resource[] {getResourceLoader().getResource(locationPattern)};
}
}
}
由類XmlBeanDefinitionReader
public int loadBeanDefinitions(Resource resource) throws BeanDefinitionStoreException {
return loadBeanDefinitions(new EncodedResource(resource));
}
public int loadBeanDefinitions(EncodedResource encodedResource) throws BeanDefinitionStoreException {
Assert.notNull(encodedResource, "EncodedResource must not be null");
if (logger.isInfoEnabled()) {
logger.info("Loading XML bean definitions from " + encodedResource.getResource());
}
Set<EncodedResource> currentResources = this.resourcesCurrentlyBeingLoaded.get();
if (currentResources == null) {
currentResources = new HashSet<EncodedResource>(4);
this.resourcesCurrentlyBeingLoaded.set(currentResources);
}
if (!currentResources.add(encodedResource)) {
throw new BeanDefinitionStoreException(
"Detected cyclic loading of " + encodedResource + " - check your import definitions!");
}
try {
InputStream inputStream = encodedResource.getResource().getInputStream();
try {
InputSource inputSource = new InputSource(inputStream);
if (encodedResource.getEncoding() != null) {
inputSource.setEncoding(encodedResource.getEncoding());
}
return doLoadBeanDefinitions(inputSource, encodedResource.getResource());
}
finally {
inputStream.close();
}
}
catch (IOException ex) {
throw new BeanDefinitionStoreException(
"IOException parsing XML document from " + encodedResource.getResource(), ex);
}
finally {
currentResources.remove(encodedResource);
if (currentResources.isEmpty()) {
this.resourcesCurrentlyBeingLoaded.remove();
}
}
}
由類DefaultDocumentLoader
public Document loadDocument(InputSource inputSource, EntityResolver entityResolver,
ErrorHandler errorHandler, int validationMode, boolean namespaceAware) throws Exception {
DocumentBuilderFactory factory = createDocumentBuilderFactory(validationMode, namespaceAware);
if (logger.isDebugEnabled()) {
logger.debug("Using JAXP provider [" + factory.getClass().getName() + "]");
}
DocumentBuilder builder = createDocumentBuilder(factory, entityResolver, errorHandler);
return builder.parse(inputSource);
}
由類DefaultBeanDefinitionDocumentReader
protected void doRegisterBeanDefinitions(Element root) {
String profileSpec = root.getAttribute(PROFILE_ATTRIBUTE);
if (StringUtils.hasText(profileSpec)) {
String[] specifiedProfiles = StringUtils.tokenizeToStringArray(
profileSpec, BeanDefinitionParserDelegate.MULTI_VALUE_ATTRIBUTE_DELIMITERS);
if (!getEnvironment().acceptsProfiles(specifiedProfiles)) {
return;
}
}
// Any nested <beans> elements will cause recursion in this method. In
// order to propagate and preserve <beans> default-* attributes correctly,
// keep track of the current (parent) delegate, which may be null. Create
// the new (child) delegate with a reference to the parent for fallback purposes,
// then ultimately reset this.delegate back to its original (parent) reference.
// this behavior emulates a stack of delegates without actually necessitating one.
BeanDefinitionParserDelegate parent = this.delegate;
this.delegate = createDelegate(this.readerContext, root, parent);
preProcessXml(root);
parseBeanDefinitions(root, this.delegate);
postProcessXml(root);
this.delegate = parent;
}
由類ComponentScanBeanDefinitionParser
public BeanDefinition parse(Element element, ParserContext parserContext) {
String[] basePackages = StringUtils.tokenizeToStringArray(element.getAttribute(BASE_PACKAGE_ATTRIBUTE),
ConfigurableApplicationContext.CONFIG_LOCATION_DELIMITERS);
// Actually scan for bean definitions and register them.
ClassPathBeanDefinitionScanner scanner = configureScanner(parserContext, element);
Set<BeanDefinitionHolder> beanDefinitions = scanner.doScan(basePackages);
registerComponents(parserContext.getReaderContext(), beanDefinitions, element);
return null;
}
由類DefaultListableBeanFactory
public void registerBeanDefinition(String beanName, BeanDefinition beanDefinition)
throws BeanDefinitionStoreException {
Assert.hasText(beanName, "Bean name must not be empty");
Assert.notNull(beanDefinition, "BeanDefinition must not be null");
if (beanDefinition instanceof AbstractBeanDefinition) {
try {
((AbstractBeanDefinition) beanDefinition).validate();
}
catch (BeanDefinitionValidationException ex) {
throw new BeanDefinitionStoreException(beanDefinition.getResourceDescription(), beanName,
"Validation of bean definition failed", ex);
}
}
BeanDefinition oldBeanDefinition;
synchronized (this.beanDefinitionMap) {
oldBeanDefinition = this.beanDefinitionMap.get(beanName);
if (oldBeanDefinition != null) {
if (!this.allowBeanDefinitionOverriding) {
throw new BeanDefinitionStoreException(beanDefinition.getResourceDescription(), beanName,
"Cannot register bean definition [" + beanDefinition + "] for bean '" + beanName +
"': There is already [" + oldBeanDefinition + "] bound.");
}
else {
if (this.logger.isInfoEnabled()) {
this.logger.info("Overriding bean definition for bean '" + beanName +
"': replacing [" + oldBeanDefinition + "] with [" + beanDefinition + "]");
}
}
}
else {
this.beanDefinitionNames.add(beanName);
this.frozenBeanDefinitionNames = null;
}
this.beanDefinitionMap.put(beanName, beanDefinition);
}
if (oldBeanDefinition != null || containsSingleton(beanName)) {
resetBeanDefinition(beanName);
}
}