]]>
渚濊禆娉ㄥ叆鐨勫嚑縐嶅疄鐜?br />聽聽聽type1 鎺ュ彛娉ㄥ叆
聽聽聽聽聽聽聽聽聽聽聽聽public class ClassA {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽private InterfaceB clzB;
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽public doSomething() {
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽Ojbect obj =
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽Class.forName(Config.BImplementation).newInstance();
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽clzB = (InterfaceB)obj;
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽clzB.doIt()
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽}
聽聽聽聽聽聽聽聽聽聽聽聽鈥︹?br />聽聽聽聽聽聽聽聽聽聽聽聽}
聽聽聽鎴戜滑閫氳繃閰嶇疆鏂囦歡鍔ㄦ佺殑鍔犺澆綾伙紝鐒跺悗寮哄埗杞崲鎴愮浉搴旂殑綾繪潵瀹炵幇鍔ㄦ佹敞鍏ワ紝瀵逛簬IOC瀹瑰櫒鏉ヨ鍔犺澆綾葷殑榪囩▼鐢卞鍣ㄦ潵瀹屾垚銆?br />web瀹瑰櫒閲囩敤type1 鎺ュ彛娉ㄥ叆鐨勫叿浣撳簲鐢?br />public class MyServlet extends HttpServlet {
public void doGet(
聽聽聽聽聽聽聽聽聽HttpServletRequest request,
聽聽聽聽聽聽聽聽聽HttpServletResponse response)
聽聽聽聽聽聽聽聽聽聽聽聽throws ServletException, IOException {
聽聽聽聽聽聽鈥︹?br />聽聽聽}
}
Type2 璁懼兼敞鍏ヂ?瀹冪敱瀹瑰櫒閫氳繃Setter鏂規(guī)硶瀹屾垚渚濊禆鍏崇郴鐨勮緗?br />Type3鏋勯犱簡娉ㄥ叆聽
public class DIByConstructor {
聽聽聽private final DataSource dataSource;
聽聽聽private final String message;
聽聽聽public DIByConstructor(DataSource ds, String msg) {
聽聽聽聽聽聽this.dataSource = ds;
聽聽聽聽聽聽this.message = msg;
聽聽聽}
聽聽聽鈥︹?br />}
Bean Wrapper
聽聽聽聽 鐢卞鍣ㄥ皢渚濊禆鍏崇郴娉ㄥ叆鍒扮粍浠跺綋涓紝鍦ㄨ繍琛屾湡闂寸敱spring鏍規(guī)嵁閰嶇疆鏂囦歡錛屽皢鍏跺畠瀵硅薄鐨勫紩鐢ㄩ氳繃緇勪歡鎻愪緵鐨剆etter鏂規(guī)硶榪涜璁懼畾銆傝繍琛屾湡闂村姩鎬佺敓鎴愬璞″茍璁懼畾瀹冨渚濊禆鍏崇郴.
Object obj = Class.forName("net.xiaxin.beans.User").newInstance();
BeanWrapper bw = new BeanWrapperImpl(obj);
bw.setPropertyValue("name", "Erica");
System.out.println("User name=>"+bw.getPropertyValue("name"));
Bean Factory
聽 鍒涘緩騫朵笖緇存姢Bean瀹炰緥瀹冨彲浠ラ厤緗?br />聽聽聽聽聽聽1.聽 Bean鐨勫睘鎬у煎強鍏朵緷璧栧叧緋伙紙鍗沖鍏跺畠Bean鐨勫紩鐢?
聽聽聽聽聽聽2.聽 Bean鐨勫垱寤烘ā寮忥紙鏄惁鍗曚緥妯″紡)
聽聽聽聽聽聽3.聽 Bean鐨勫垵濮嬪寲鍜岄攢姣佹柟娉?br />聽聽聽聽聽聽4.聽 Bean鐨勪緷璧栧叧緋?br />
ApplicationContext
聽聽聽聽聽聽瑕嗙洊浜咮eanFactory鎵鏈夌殑鏂規(guī)硶錛岃屼笖鎻愪緵浜嗘柊鐨勫姛鑳姐傚畠鏈変互涓嬫墿灞曞姛鑳?br />聽聽聽1.鍥介檯鍖栫殑鏀寔
聽聽聽2.璧勬簮璁塊棶
聽聽聽3.浜嬩歡浼犳挱
聽聽聽4.澶氬疄渚嬪姞杞?br />聽聽聽 spring鎻愪緵浜嗗彲閰嶇疆鐨凙pplicationContext鍔犺澆鏈哄埗銆傚姞杞藉櫒鏈変袱縐嶉夋嫨錛欳ontextLoaderListener鎴朇ontextLoaderServlet涓涓埄鐢╯ervlet2.3鐨凩istener鎺ュ彛瀹炵幇鑰屽彟涓涓垯鍒╃敤Servlet鎺ュ彛瀹炵幇銆?br />鍦╳eb.xml涓姞鍏?br />聽聽聽聽聽聽聽聽聽聽聽聽<listener>
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽<listener-class>
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽org.springframework.web.context.ContextLoaderListener
聽聽聽聽聽聽聽聽聽聽聽聽 聽</listener-class>
聽聽聽聽聽聽聽聽聽聽 </listener>
鎴栬?
聽聽聽聽聽聽聽聽聽<servlet>
聽聽聽聽聽聽聽聽聽聽聽聽<servlet-name>context</servlet-name>
聽聽聽聽聽聽聽聽聽聽聽聽<servlet-class>
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽org.springframework.web.context.ContextLoaderServlet
聽聽聽聽聽聽聽聽聽聽聽聽</servlet-class>
聽聽聽聽聽聽聽聽聽聽聽聽<load-on-startup>1</load-on-startup>
聽聽聽聽聽聽聽聽聽</servlet>
Web瀹瑰櫒浼氳嚜鍔ㄥ姞杞絎EB-INF/applicationContext.xml鍒濆鍖朅pplicationContext瀹炰緥.濡傛灉浣犳寚瀹氶厤緗枃浠跺氨鍙互閫氳繃context-param鎸囧畾錛?br />聽聽聽聽聽聽<context-param>
聽聽聽聽聽聽聽聽聽<param-name>contextConfigLocation</param-name>
聽聽聽聽聽聽聽聽聽<param-value>/WEB-INF/myApplicationContext.xml</param-value>
聽聽聽聽聽聽</context-param>
閰嶇疆瀹屾垚鍚庡氨鍙互閫氳繃WebApplicationContextUtils.getWebApplicationContext鏂規(guī)硶鍦╓eb搴旂敤涓幏鍙朅pplicationContext鐨勫紩鐢?
]]>