本文整理汇总了Java中org.springframework.expression.spel.support.StandardTypeLocator类的典型用法代码示例。如果您正苦于以下问题：Java StandardTypeLocator类的具体用法？Java StandardTypeLocator怎么用？Java StandardTypeLocator使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
StandardTypeLocator类属于org.springframework.expression.spel.support包，在下文中一共展示了StandardTypeLocator类的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: testImports
import org.springframework.expression.spel.support.StandardTypeLocator; //导入依赖的package包/类
@Test
public void testImports() throws EvaluationException {
StandardTypeLocator locator = new StandardTypeLocator();
assertEquals(Integer.class,locator.findType("java.lang.Integer"));
assertEquals(String.class,locator.findType("java.lang.String"));
List<String> prefixes = locator.getImportPrefixes();
assertEquals(1,prefixes.size());
assertTrue(prefixes.contains("java.lang"));
assertFalse(prefixes.contains("java.util"));
assertEquals(Boolean.class,locator.findType("Boolean"));
// currently does not know about java.util by default
// assertEquals(java.util.List.class,locator.findType("List"));
try {
locator.findType("URL");
fail("Should have failed");
} catch (EvaluationException ee) {
SpelEvaluationException sEx = (SpelEvaluationException)ee;
assertEquals(SpelMessage.TYPE_NOT_FOUND,sEx.getMessageCode());
}
locator.registerImport("java.net");
assertEquals(java.net.URL.class,locator.findType("URL"));
}
示例2: testResolvingList
import org.springframework.expression.spel.support.StandardTypeLocator; //导入依赖的package包/类
@Test
public void testResolvingList() throws Exception {
StandardEvaluationContext context = TestScenarioCreator.getTestEvaluationContext();
try {
assertFalse(parser.parseExpression("T(List)!=null").getValue(context, Boolean.class));
fail("should have failed to find List");
} catch (EvaluationException ee) {
// success - List not found
}
((StandardTypeLocator) context.getTypeLocator()).registerImport("java.util");
assertTrue(parser.parseExpression("T(List)!=null").getValue(context, Boolean.class));
}
示例3: evaluate
import org.springframework.expression.spel.support.StandardTypeLocator; //导入依赖的package包/类
public Object evaluate(String value, BeanExpressionContext evalContext) throws BeansException {
if (!StringUtils.hasLength(value)) {
return value;
}
try {
Expression expr = this.expressionCache.get(value);
if (expr == null) {
expr = this.expressionParser.parseExpression(value, this.beanExpressionParserContext);
this.expressionCache.put(value, expr);
}
StandardEvaluationContext sec = this.evaluationCache.get(evalContext);
if (sec == null) {
sec = new StandardEvaluationContext();
sec.setRootObject(evalContext);
sec.addPropertyAccessor(new BeanExpressionContextAccessor());
sec.addPropertyAccessor(new BeanFactoryAccessor());
sec.addPropertyAccessor(new MapAccessor());
sec.addPropertyAccessor(new EnvironmentAccessor());
sec.setBeanResolver(new BeanFactoryResolver(evalContext.getBeanFactory()));
sec.setTypeLocator(new StandardTypeLocator(evalContext.getBeanFactory().getBeanClassLoader()));
ConversionService conversionService = evalContext.getBeanFactory().getConversionService();
if (conversionService != null) {
sec.setTypeConverter(new StandardTypeConverter(conversionService));
}
customizeEvaluationContext(sec);
this.evaluationCache.put(evalContext, sec);
}
return expr.getValue(sec);
}
catch (Exception ex) {
throw new BeanExpressionException("Expression parsing failed", ex);
}
}