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先看下重構(gòu)前的測(cè)試用例：
  public class TestLogin extends TestCase {
 private ButtonManagerIbatis buttonManagerIbatis;
  protected void setUp() throws Exception {
context = getContext();
buttonManagerIbatis = (ButtonManagerIbatis)context.getBean("buttonManagerIbatis");
super.setUp();
 }
ApplicationContext context ;
protected ApplicationContext getContext() {
String[] paths = {"/context/application_context.xml"};
ApplicationContext ctx = new ClassPathXmlApplicationContext(paths);
return ctx;
}
/** *//**
* 測(cè)試：登陸后讀取權(quán)限信息，并且封裝為樹(shù)形結(jié)構(gòu)
*/
public void testLongin(){
List<Button> list = buttonManagerIbatis.getAuth("0000");
testall(list);
}
Map<String,Model> modelmap = new HashMap<String,Model>();
Map<String,Menu> fmenumap = new HashMap<String,Menu>();
Map<String,Menu> smenumap = new HashMap<String,Menu>();
public void testall(List<Button> buttonList){
for(Button button :buttonList){
test(modelmap,button);
}
for(Model model : modelmap.values()){
test2(smenumap,model);
}
for(Menu menu : smenumap.values()){
test3(fmenumap,menu);
}
for(Menu fmenu :fmenumap.values() ){
System.out.println(fmenu.getMenuName());
for(Menu smenu :fmenu.getMenus() ){
System.out.println(" "+smenu.getMenuName());
for(Model model : smenu.getModels()){
System.out.println(" "+model.getName());
for(Button b:model.getButtons()){
System.out.println(" "+ b.getButtonDesc());
}
}
}
}
}
public void test(Map<String,Model> modelmap , Button b){
Model m = b.getModel();
if(!modelmap.containsKey(m.getId()))
modelmap.put(m.getId(),m);
modelmap.get(m.getId()).getButtons().add(b);
}
public void test2(Map<String,Menu> menumap , Model m){
Menu menu = m.getMenu();
if(!menumap.containsKey(menu.getId()))
menumap.put(menu.getId(),menu);
menumap.get(menu.getId()).getModels().add(m);
}
public void test3(Map<String,Menu> menumap , Menu smenu){
Menu fmenu = smenu.getMenu();
if(!menumap.containsKey(fmenu.getId()))
menumap.put(fmenu.getId(),fmenu);
menumap.get(fmenu.getId()).getMenus().add(smenu);
}
 } 這里有3個(gè)方法 test, test2 ,test3 考慮到以后還可能有變化，所以想把他們合成一個(gè)方法，首先考慮到了反射
public void testC(Map map , Object t , String parent ,String childrenname){
try {
Object t_parent = BeanUtils.getDeclaredProperty(t, parent);
Object t_parent_id = BeanUtils.getDeclaredProperty(t_parent, "id");
if(!map.containsKey(t_parent_id)){
map.put(t_parent_id, t_parent);
}
Object o = map.get(t_parent_id);
Collection t_collection =(Collection)BeanUtils.getDeclaredProperty(o, childrenname);
t_collection.add(t);
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (NoSuchFieldException e) {
e.printStackTrace();
}
}
于是修改后的測(cè)試用例為：
public class TestLogin extends TestCase{
private ButtonManagerIbatis buttonManagerIbatis;
protected void setUp() throws Exception {
context = getContext();
buttonManagerIbatis = (ButtonManagerIbatis)context.getBean("buttonManagerIbatis");
super.setUp();
}
ApplicationContext context ;
protected ApplicationContext getContext() {
String[] paths = {"/context/application_context.xml"};
ApplicationContext ctx = new ClassPathXmlApplicationContext(paths);
return ctx;
}
public void testLongin(){
List<Button> list = buttonManagerIbatis.getAuth("0000");
testall(list);
}
Map<String,Model> modelmap = new HashMap<String,Model>();
Map<String,Menu> fmenumap = new HashMap<String,Menu>();
Map<String,Menu> smenumap = new HashMap<String,Menu>();
public void testall(List<Button> buttonList){
for(Button button :buttonList){
testC(modelmap,button,"model","buttons");
}
for(Model model : modelmap.values()){
testC(smenumap,model,"menu","models");
}
for(Menu menu : smenumap.values()){
testC(fmenumap,menu,"menu","menus");
}
for(Menu fmenu :fmenumap.values() ){
System.out.println(fmenu.getMenuName());
for(Menu smenu :fmenu.getMenus() ){
System.out.println(" "+smenu.getMenuName());
for(Model model : smenu.getModels()){
System.out.println(" "+model.getName());
for(Button b:model.getButtons()){
System.out.println(" "+ b.getButtonDesc());
}
}
}
}
}
/** *//**
*
* @param map
* @param b
*/
@SuppressWarnings("unchecked")
public void testC(Map map , Object t , String parent ,String childrenname){
try {
Object t_parent = BeanUtils.getDeclaredProperty(t, parent);
Object t_parent_id = BeanUtils.getDeclaredProperty(t_parent, "id");
if(!map.containsKey(t_parent_id)){
map.put(t_parent_id, t_parent);
}
Object o = map.get(t_parent_id);
Collection t_collection =(Collection)BeanUtils.getDeclaredProperty(o, childrenname);
t_collection.add(t);
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (NoSuchFieldException e) {
e.printStackTrace();
}
}
}
例外 BeanUtils中的 反射方法：
static public Object getDeclaredProperty(Object object, String propertyName) throws IllegalAccessException, NoSuchFieldException {
Assert.notNull(object);
Assert.hasText(propertyName);
Field field = object.getClass().getDeclaredField(propertyName);
return getDeclaredProperty(object, field);
}
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