SSH企业培训之Spring组件装配.pptVIP

刘晓涛 Spring组件装配 本章目标 集合装配 自定义属性编辑器(日期处理) 自动装配 抽象配置 集合装配 public class CollectionInjectionService { private String strValue; private int intValue; private List listValue; private String[] arrayValue; private Set setValue; private Map mapValue; private Date dateValue; //getXxx()与setXxx()方法 } 集合装配 property name=strValue value=hello lxt008!!!/property property name=intValue value=35/property property name=listValue list valueaaa/value valuebbb/value /list /property property name=arrayValue list valuexxx/value valueyyy/value /list /property 数组与List配置方式一样。 集合装配 property name=setValue set valueabc/value valuecba/value valuebac/value /set /property property name=mapValue map entry key=1 value=111/entry entry key=2 value=222/entry entry key=3 value=333/entry /map /property Main ApplicationContext ctx=new ClassPathXmlApplicationContext(applicationContext.xml); CollectionInjectionService collectionInjectionService=(CollectionInjectionService)ctx.getBean(collectionInjectionService); System.out.println(collectionInjectionService.getStrValue()); System.out.println(collectionInjectionService.getIntValue()); System.out.println(collectionInjectionService.getListValue()); System.out.println(collectionInjectionService.getArrayValue()[2]); System.out.println(collectionInjectionService.getSetValue()); System.out.println(collectionInjectionService.getMapValue()); 自定义属性编辑器 !-- 直接注入字符串出现异常,需要自定义属性编辑器 -- property name=dateValue value2009-03-25/value /property 步骤： 继承PropertyEditorSupport类，覆盖setAsText() 。 将属性编辑器注册到spring中。 DateUtilPropertyEditor public class DateUtilPropertyEditor  extends PropertyEditorSupport { private String format=yyyy-MM-dd; public void setAsText(String text)  throws IllegalArgumentException { SimpleDateFormat sdf = new SimpleDateFormat(format); try { Date d = sdf.parse(text); this.setValue(d); } catch (ParseException e) { e.printStackTrace(); } } } 自定义属性编辑器-注册到Spring !-- 自定义属性编辑器 -- b