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?Spring?????????????????????????????????application.properties?xml?????????????????Spring???bean??

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public class UserServiceImpl implements UserService {    private String userName;    private String password;    private UserDao ud;    // ???????    public UserServiceImpl(UserDao ud) {        this.ud = ud;    }    // ??????    public UserServiceImpl() {    }    public void setUserName(String userName) {        this.userName = userName;    }    public void setPassword(String password) {        this.password = password;    }    public int addUser() {        System.out.println("uname:" + userName + "password:" + password);        return ud.addUser();    }}

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?Spring???????????????????????List?Map?

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public class UserServiceImpl implements UserService {    private List
   
     strNameList;    private Map
    
      userMap;    public List
     
       getStrNameList() {        return strNameList;    }    public void setStrNameList(List
      
        strNameList) {        this.strNameList = strNameList;    }    public Map
       
         getUserMap() {        return userMap;    }    public void setUserMap(Map
        
          userMap) { this.userMap = userMap; } public int addUser() { System.out.println("uname:" + userName + "password:" + password); System.out.println("strlist:" + strNameList.toString()); System.out.println("map:"); for (String key : userMap.keySet()) { System.out.println("u:" + userMap.get(key).getName() + ">>:" + userMap.get(key).getAge()); } return ud.addUser(); }}
        
       
      
     
    
   

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?Spring????????@Autowired???ref??????????????????bean?

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public class UserServiceImpl implements UserService {    private UserDao ud;    // ???????    public UserServiceImpl(UserDao ud) {        this.ud = ud;    }    // ??????    public UserServiceImpl() {    }    public int addUser() {        System.out.println("uname:" + userName + "password:" + password);        return ud.addUser();    }}

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