下面列出了怎么用org.springframework.util.StringValueResolver的API类实例代码及写法，或者点击链接到github查看源代码。
/**
* Visit each bean definition in the given bean factory and attempt to replace ${...} property
* placeholders with values from the given properties.
*/
protected void processProperties(ConfigurableListableBeanFactory beanFactoryToProcess,
final ConfigurablePropertyResolver propertyResolver) throws BeansException {
propertyResolver.setPlaceholderPrefix(this.placeholderPrefix);
propertyResolver.setPlaceholderSuffix(this.placeholderSuffix);
propertyResolver.setValueSeparator(this.valueSeparator);
StringValueResolver valueResolver = strVal -> {
String resolved = (this.ignoreUnresolvablePlaceholders ?
propertyResolver.resolvePlaceholders(strVal) :
propertyResolver.resolveRequiredPlaceholders(strVal));
if (this.trimValues) {
resolved = resolved.trim();
}
return (resolved.equals(this.nullValue) ? null : resolved);
};
doProcessProperties(beanFactoryToProcess, valueResolver);
}
@Before
public void setUp() {
DefaultConversionService.addDefaultConverters(conversionService);
conversionService.setEmbeddedValueResolver(new StringValueResolver() {
@Override
public String resolveStringValue(String strVal) {
if ("${pattern}".equals(strVal)) {
return "#,##.00";
}
else {
return strVal;
}
}
});
conversionService.addFormatterForFieldType(Number.class, new NumberStyleFormatter());
conversionService.addFormatterForFieldAnnotation(new NumberFormatAnnotationFormatterFactory());
LocaleContextHolder.setLocale(Locale.US);
binder = new DataBinder(new TestBean());
binder.setConversionService(conversionService);
}
@Override
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
// 从 beanFactory 中获取 bean 名字列表
String[] beanNames = beanFactory.getBeanDefinitionNames();
for (String beanName : beanNames) {
BeanDefinition definition = beanFactory.getBeanDefinition(beanName);
StringValueResolver valueResolver = strVal -> {
if (isObscene(strVal)) return "*****";
return strVal;
};
BeanDefinitionVisitor visitor = new BeanDefinitionVisitor(valueResolver);
// 这一步才是真正处理 bean 的配置信息
visitor.visitBeanDefinition(definition);
}
}
@Test
public void resolveEmbeddedValue() throws Exception {
DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
StringValueResolver r1 = mock(StringValueResolver.class);
StringValueResolver r2 = mock(StringValueResolver.class);
StringValueResolver r3 = mock(StringValueResolver.class);
bf.addEmbeddedValueResolver(r1);
bf.addEmbeddedValueResolver(r2);
bf.addEmbeddedValueResolver(r3);
given(r1.resolveStringValue("A")).willReturn("B");
given(r2.resolveStringValue("B")).willReturn(null);
given(r3.resolveStringValue(isNull(String.class))).willThrow(new IllegalArgumentException());
bf.resolveEmbeddedValue("A");
verify(r1).resolveStringValue("A");
verify(r2).resolveStringValue("B");
verify(r3, never()).resolveStringValue(isNull(String.class));
}
/**
* Visit each bean definition in the given bean factory and attempt to replace ${...} property
* placeholders with values from the given properties.
*/
protected void processProperties(ConfigurableListableBeanFactory beanFactoryToProcess,
final ConfigurablePropertyResolver propertyResolver) throws BeansException {
propertyResolver.setPlaceholderPrefix(this.placeholderPrefix);
propertyResolver.setPlaceholderSuffix(this.placeholderSuffix);
propertyResolver.setValueSeparator(this.valueSeparator);
StringValueResolver valueResolver = strVal -> {
String resolved = (this.ignoreUnresolvablePlaceholders ?
propertyResolver.resolvePlaceholders(strVal) :
propertyResolver.resolveRequiredPlaceholders(strVal));
if (this.trimValues) {
resolved = resolved.trim();
}
return (resolved.equals(this.nullValue) ? null : resolved);
};
doProcessProperties(beanFactoryToProcess, valueResolver);
}
protected void doProcessProperties(ConfigurableListableBeanFactory beanFactoryToProcess,
StringValueResolver valueResolver) {
BeanDefinitionVisitor visitor = new BeanDefinitionVisitor(valueResolver);
String[] beanNames = beanFactoryToProcess.getBeanDefinitionNames();
for (String curName : beanNames) {
// Check that we're not parsing our own bean definition,
// to avoid failing on unresolvable placeholders in properties file locations.
if (!(curName.equals(this.beanName) && beanFactoryToProcess.equals(this.beanFactory))) {
BeanDefinition bd = beanFactoryToProcess.getBeanDefinition(curName);
try {
visitor.visitBeanDefinition(bd);
}
catch (Exception ex) {
throw new BeanDefinitionStoreException(bd.getResourceDescription(), curName, ex.getMessage(), ex);
}
}
}
// New in Spring 2.5: resolve placeholders in alias target names and aliases as well.
beanFactoryToProcess.resolveAliases(valueResolver);
// New in Spring 3.0: resolve placeholders in embedded values such as annotation attributes.
beanFactoryToProcess.addEmbeddedValueResolver(valueResolver);
}
@Before
public void setUp() {
DefaultConversionService.addDefaultConverters(conversionService);
conversionService.setEmbeddedValueResolver(new StringValueResolver() {
@Override
public String resolveStringValue(String strVal) {
if ("${pattern}".equals(strVal)) {
return "#,##.00";
}
else {
return strVal;
}
}
});
conversionService.addFormatterForFieldType(Number.class, new NumberStyleFormatter());
conversionService.addFormatterForFieldAnnotation(new NumberFormatAnnotationFormatterFactory());
LocaleContextHolder.setLocale(Locale.US);
binder = new DataBinder(new TestBean());
binder.setConversionService(conversionService);
}
protected void doProcessProperties(ConfigurableListableBeanFactory beanFactoryToProcess,
StringValueResolver valueResolver) {
BeanDefinitionVisitor visitor = new BeanDefinitionVisitor(valueResolver);
String[] beanNames = beanFactoryToProcess.getBeanDefinitionNames();
for (String curName : beanNames) {
// Check that we're not parsing our own bean definition,
// to avoid failing on unresolvable placeholders in properties file locations.
if (!(curName.equals(this.beanName) && beanFactoryToProcess.equals(this.beanFactory))) {
BeanDefinition bd = beanFactoryToProcess.getBeanDefinition(curName);
try {
visitor.visitBeanDefinition(bd);
}
catch (Exception ex) {
throw new BeanDefinitionStoreException(bd.getResourceDescription(), curName, ex.getMessage(), ex);
}
}
}
// New in Spring 2.5: resolve placeholders in alias target names and aliases as well.
beanFactoryToProcess.resolveAliases(valueResolver);
// New in Spring 3.0: resolve placeholders in embedded values such as annotation attributes.
beanFactoryToProcess.addEmbeddedValueResolver(valueResolver);
}
protected void processProperties(ConfigurableListableBeanFactory beanFactoryToProcess,
final ConfigurablePropertyResolver propertyResolver) throws BeansException {
propertyResolver.setPlaceholderPrefix(this.placeholderPrefix);
propertyResolver.setPlaceholderSuffix(this.placeholderSuffix);
propertyResolver.setValueSeparator(this.valueSeparator);
StringValueResolver valueResolver = new StringValueResolver() {
@Override
public String resolveStringValue(String strVal) {
String resolved = ignoreUnresolvablePlaceholders ? propertyResolver.resolvePlaceholders(strVal)
: propertyResolver.resolveRequiredPlaceholders(strVal);
return (resolved.equals(nullValue) ? null : resolved);
}
};
doProcessProperties(beanFactoryToProcess, valueResolver);
}
@Before
public void setUp() {
DefaultConversionService.addDefaultConverters(conversionService);
conversionService.setEmbeddedValueResolver(new StringValueResolver() {
@Override
public String resolveStringValue(String strVal) {
if ("${pattern}".equals(strVal)) {
return "#,##.00";
}
else {
return strVal;
}
}
});
conversionService.addFormatterForFieldType(Number.class, new NumberStyleFormatter());
conversionService.addFormatterForFieldAnnotation(new NumberFormatAnnotationFormatterFactory());
LocaleContextHolder.setLocale(Locale.US);
binder = new DataBinder(new TestBean());
binder.setConversionService(conversionService);
}
/**
* Copy the properties of the supplied {@link Annotation} to the supplied target bean.
* Any properties defined in {@code excludedProperties} will not be copied.
* <p>A specified value resolver may resolve placeholders in property values, for example.
* @param ann the annotation to copy from
* @param bean the bean instance to copy to
* @param valueResolver a resolve to post-process String property values (may be {@code null})
* @param excludedProperties the names of excluded properties, if any
* @see org.springframework.beans.BeanWrapper
*/
public static void copyPropertiesToBean(Annotation ann, Object bean, StringValueResolver valueResolver, String... excludedProperties) {
Set<String> excluded = new HashSet<String>(Arrays.asList(excludedProperties));
Method[] annotationProperties = ann.annotationType().getDeclaredMethods();
BeanWrapper bw = PropertyAccessorFactory.forBeanPropertyAccess(bean);
for (Method annotationProperty : annotationProperties) {
String propertyName = annotationProperty.getName();
if (!excluded.contains(propertyName) && bw.isWritableProperty(propertyName)) {
Object value = ReflectionUtils.invokeMethod(annotationProperty, ann);
if (valueResolver != null && value instanceof String) {
value = valueResolver.resolveStringValue((String) value);
}
bw.setPropertyValue(propertyName, value);
}
}
}
protected void doProcessProperties(ConfigurableListableBeanFactory beanFactoryToProcess,
StringValueResolver valueResolver) {
BeanDefinitionVisitor visitor = new BeanDefinitionVisitor(valueResolver);
String[] beanNames = beanFactoryToProcess.getBeanDefinitionNames();
for (String curName : beanNames) {
// Check that we're not parsing our own bean definition,
// to avoid failing on unresolvable placeholders in properties file locations.
if (!(curName.equals(this.beanName) && beanFactoryToProcess.equals(this.beanFactory))) {
BeanDefinition bd = beanFactoryToProcess.getBeanDefinition(curName);
try {
visitor.visitBeanDefinition(bd);
}
catch (Exception ex) {
throw new BeanDefinitionStoreException(bd.getResourceDescription(), curName, ex.getMessage(), ex);
}
}
}
// New in Spring 2.5: resolve placeholders in alias target names and aliases as well.
beanFactoryToProcess.resolveAliases(valueResolver);
// New in Spring 3.0: resolve placeholders in embedded values such as annotation attributes.
beanFactoryToProcess.addEmbeddedValueResolver(valueResolver);
}
/**
* Create a new {@code DefaultFormattingConversionService} with the set of
* {@linkplain DefaultConversionService#addDefaultConverters default converters} and,
* based on the value of {@code registerDefaultFormatters}, the set of
* {@linkplain #addDefaultFormatters default formatters}.
* @param embeddedValueResolver delegated to {@link #setEmbeddedValueResolver(StringValueResolver)}
* prior to calling {@link #addDefaultFormatters}.
* @param registerDefaultFormatters whether to register default formatters
*/
public DefaultFormattingConversionService(
@Nullable StringValueResolver embeddedValueResolver, boolean registerDefaultFormatters) {
if (embeddedValueResolver != null) {
setEmbeddedValueResolver(embeddedValueResolver);
}
DefaultConversionService.addDefaultConverters(this);
if (registerDefaultFormatters) {
addDefaultFormatters(this);
}
}
/**
* Visit each bean definition in the given bean factory and attempt to replace ${...} property
* placeholders with values from the given properties.
*/
@Override
protected void processProperties(ConfigurableListableBeanFactory beanFactoryToProcess, Properties props)
throws BeansException {
StringValueResolver valueResolver = new PlaceholderResolvingStringValueResolver(props);
doProcessProperties(beanFactoryToProcess, valueResolver);
}
public SpringLockConfigurationExtractor(
@NonNull Duration defaultLockAtMostFor,
@NonNull Duration defaultLockAtLeastFor,
@Nullable StringValueResolver embeddedValueResolver,
@NonNull Converter<String, Duration> durationConverter
) {
this.defaultLockAtMostFor = requireNonNull(defaultLockAtMostFor);
this.defaultLockAtLeastFor = requireNonNull(defaultLockAtLeastFor);
this.durationConverter = requireNonNull(durationConverter);
this.embeddedValueResolver = embeddedValueResolver;
}
@Override
public String resolveEmbeddedValue(String value) {
String result = value;
for (StringValueResolver resolver : this.embeddedValueResolvers) {
if (result == null) {
return null;
}
result = resolver.resolveStringValue(result);
}
return result;
}
@Override
public String resolveEmbeddedValue(String value) {
String result = value;
for (StringValueResolver resolver : this.embeddedValueResolvers) {
if (result == null) {
return null;
}
result = resolver.resolveStringValue(result);
}
return result;
}
/**
* Resolve all alias target names and aliases registered in this
* factory, applying the given StringValueResolver to them.
* <p>The value resolver may for example resolve placeholders
* in target bean names and even in alias names.
* @param valueResolver the StringValueResolver to apply
*/
public void resolveAliases(StringValueResolver valueResolver) {
Assert.notNull(valueResolver, "StringValueResolver must not be null");
synchronized (this.aliasMap) {
Map<String, String> aliasCopy = new HashMap<>(this.aliasMap);
aliasCopy.forEach((alias, registeredName) -> {
String resolvedAlias = valueResolver.resolveStringValue(alias);
String resolvedName = valueResolver.resolveStringValue(registeredName);
if (resolvedAlias == null || resolvedName == null || resolvedAlias.equals(resolvedName)) {
this.aliasMap.remove(alias);
}
else if (!resolvedAlias.equals(alias)) {
String existingName = this.aliasMap.get(resolvedAlias);
if (existingName != null) {
if (existingName.equals(resolvedName)) {
// Pointing to existing alias - just remove placeholder
this.aliasMap.remove(alias);
return;
}
throw new IllegalStateException(
"Cannot register resolved alias '" + resolvedAlias + "' (original: '" + alias +
"') for name '" + resolvedName + "': It is already registered for name '" +
registeredName + "'.");
}
checkForAliasCircle(resolvedName, resolvedAlias);
this.aliasMap.remove(alias);
this.aliasMap.put(resolvedAlias, resolvedName);
}
else if (!registeredName.equals(resolvedName)) {
this.aliasMap.put(alias, resolvedName);
}
});
}
}
public Scopifier(BeanDefinitionRegistry registry, String scope, boolean proxyTargetClass, boolean scoped) {
super(new StringValueResolver() {
public String resolveStringValue(String value) {
return value;
}
});
this.registry = registry;
this.proxyTargetClass = proxyTargetClass;
this.scope = scope;
this.scoped = scoped;
}
static StringValueResolver buildStringValueResolver(Map<String, Properties> filenameToPropsMap) {
MutablePropertySources propertySources = new MutablePropertySources();
for (Map.Entry<String, Properties> entry : filenameToPropsMap.entrySet()) {
propertySources.addFirst(new PropertiesPropertySource(entry.getKey(), entry.getValue()));
}
return buildStringValueResolver(new PropertySourcesPropertyResolver(propertySources));
}
/**
* Visit each bean definition in the given bean factory and attempt to replace ${...} property
* placeholders with values from the given properties.
*/
@Override
protected void processProperties(ConfigurableListableBeanFactory beanFactoryToProcess, Properties props)
throws BeansException {
StringValueResolver valueResolver = new PlaceholderResolvingStringValueResolver(props);
this.doProcessProperties(beanFactoryToProcess, valueResolver);
}
public static StringValueResolver createStringValueResolver(Map<String, Object> map) {
StandardEnvironment standardEnvironment = new StandardEnvironment();
standardEnvironment.getPropertySources().addFirst(
new MapPropertySource(UUID.randomUUID().toString(), map));
return standardEnvironment::resolvePlaceholders;
}
/**
* Resolve all alias target names and aliases registered in this
* factory, applying the given StringValueResolver to them.
* <p>The value resolver may for example resolve placeholders
* in target bean names and even in alias names.
* @param valueResolver the StringValueResolver to apply
*/
public void resolveAliases(StringValueResolver valueResolver) {
Assert.notNull(valueResolver, "StringValueResolver must not be null");
synchronized (this.aliasMap) {
Map<String, String> aliasCopy = new HashMap<String, String>(this.aliasMap);
for (String alias : aliasCopy.keySet()) {
String registeredName = aliasCopy.get(alias);
String resolvedAlias = valueResolver.resolveStringValue(alias);
String resolvedName = valueResolver.resolveStringValue(registeredName);
if (resolvedAlias == null || resolvedName == null || resolvedAlias.equals(resolvedName)) {
this.aliasMap.remove(alias);
}
else if (!resolvedAlias.equals(alias)) {
String existingName = this.aliasMap.get(resolvedAlias);
if (existingName != null) {
if (existingName.equals(resolvedName)) {
// Pointing to existing alias - just remove placeholder
this.aliasMap.remove(alias);
break;
}
throw new IllegalStateException(
"Cannot register resolved alias '" + resolvedAlias + "' (original: '" + alias +
"') for name '" + resolvedName + "': It is already registered for name '" +
registeredName + "'.");
}
checkForAliasCircle(resolvedName, resolvedAlias);
this.aliasMap.remove(alias);
this.aliasMap.put(resolvedAlias, resolvedName);
}
else if (!registeredName.equals(resolvedName)) {
this.aliasMap.put(alias, resolvedName);
}
}
}
}
@Test(expected = MappingDeclarationException.class)
public void testMissingParameters() throws Exception {
SpringAnnotationMethodInspector inspector = new SpringAnnotationMethodInspector();
StringValueResolver resolver = mock(StringValueResolver.class);
inspector.setEmbeddedValueResolver(resolver);
Method someMethod2 = getClass().getMethod("someMethod2", String.class, int.class, String.class);
inspector.inspect(someMethod2, new Object[] { "a", new Integer(2), "c" });
}
/**
* Finish the initialization of this context's bean factory,
* initializing all remaining singleton beans.
*/
protected void finishBeanFactoryInitialization(ConfigurableListableBeanFactory beanFactory) {
// Initialize conversion service for this context.
if (beanFactory.containsBean(CONVERSION_SERVICE_BEAN_NAME) &&
beanFactory.isTypeMatch(CONVERSION_SERVICE_BEAN_NAME, ConversionService.class)) {
beanFactory.setConversionService(
beanFactory.getBean(CONVERSION_SERVICE_BEAN_NAME, ConversionService.class));
}
// Register a default embedded value resolver if no bean post-processor
// (such as a PropertyPlaceholderConfigurer bean) registered any before:
// at this point, primarily for resolution in annotation attribute values.
if (!beanFactory.hasEmbeddedValueResolver()) {
beanFactory.addEmbeddedValueResolver(new StringValueResolver() {
@Override
public String resolveStringValue(String strVal) {
return getEnvironment().resolvePlaceholders(strVal);
}
});
}
// Initialize LoadTimeWeaverAware beans early to allow for registering their transformers early.
String[] weaverAwareNames = beanFactory.getBeanNamesForType(LoadTimeWeaverAware.class, false, false);
for (String weaverAwareName : weaverAwareNames) {
getBean(weaverAwareName);
}
// Stop using the temporary ClassLoader for type matching.
beanFactory.setTempClassLoader(null);
// Allow for caching all bean definition metadata, not expecting further changes.
beanFactory.freezeConfiguration();
// Instantiate all remaining (non-lazy-init) singletons.
beanFactory.preInstantiateSingletons();
}
/**
* Resolve all alias target names and aliases registered in this
* factory, applying the given StringValueResolver to them.
* <p>The value resolver may for example resolve placeholders
* in target bean names and even in alias names.
* @param valueResolver the StringValueResolver to apply
*/
public void resolveAliases(StringValueResolver valueResolver) {
Assert.notNull(valueResolver, "StringValueResolver must not be null");
synchronized (this.aliasMap) {
Map<String, String> aliasCopy = new HashMap<String, String>(this.aliasMap);
for (String alias : aliasCopy.keySet()) {
String registeredName = aliasCopy.get(alias);
String resolvedAlias = valueResolver.resolveStringValue(alias);
String resolvedName = valueResolver.resolveStringValue(registeredName);
if (resolvedAlias == null || resolvedName == null || resolvedAlias.equals(resolvedName)) {
this.aliasMap.remove(alias);
}
else if (!resolvedAlias.equals(alias)) {
String existingName = this.aliasMap.get(resolvedAlias);
if (existingName != null) {
if (existingName.equals(resolvedName)) {
// Pointing to existing alias - just remove placeholder
this.aliasMap.remove(alias);
break;
}
throw new IllegalStateException(
"Cannot register resolved alias '" + resolvedAlias + "' (original: '" + alias +
"') for name '" + resolvedName + "': It is already registered for name '" +
registeredName + "'.");
}
checkForAliasCircle(resolvedName, resolvedAlias);
this.aliasMap.remove(alias);
this.aliasMap.put(resolvedAlias, resolvedName);
}
else if (!registeredName.equals(resolvedName)) {
this.aliasMap.put(alias, resolvedName);
}
}
}
}
@Override
public void setEmbeddedValueResolver(StringValueResolver resolver) {
this.valueResolver = resolver;
}
@Override
public void setEmbeddedValueResolver(StringValueResolver resolver) {
this.valueResolver = resolver;
}
@Override
public void setEmbeddedValueResolver(StringValueResolver resolver) {
this.embeddedValueResolver = resolver;
}
@Override
public void setEmbeddedValueResolver(StringValueResolver resolver) {
this.embeddedValueResolver = resolver;
}