XStream xml转java对象

<dependency>
<groupId>xstream</groupId>
<artifactId>xstream</artifactId>
<version>1.1.3</version>
</dependency>
<dependency>
<groupId>xpp3</groupId>
<artifactId>xpp3_min</artifactId>
<version>1.1.3.4.O</version>
</dependency>

<ConfigUser>
<type>ADMIN</type>
<users>
<AdminUser>
<name>zhaoyb</name>
<pwd>abc123</pwd>
<ip>
<string>127.0.0.1</string>
<string>203.119.80.128</string>
</ip>
</AdminUser>
<AdminUser>
<name>liangqunxing</name>
<pwd>abc123</pwd>
<ip>
<string>127.0.0.1</string>
<string>202.173.100.126</string>
</ip>
</AdminUser>
<AdminUser>
<name>liuyu</name>
<pwd>abc123</pwd>
<ip>
<string>127.0.0.1</string>
<string>203.119.80.108</string>
</ip>
</AdminUser>
</users>
</ConfigUser>

InputStream xmlInputStream = new ClassPathResource("admin.xml").getInputStream();
XStream xStream = new XStream();
xStream.alias("AdminUser", AdminUser.class);
xStream.alias("ConfigUser", ConfigUsers.class);
ConfigUsers users = (ConfigUsers) xStream.fromXML(xmlInputStream);
List<AdminUser> adminUsers = users.getUsers();

public class ConfigUsers {
private String type;
private List<AdminUser> users;

public String getType() {
return type;
}

public void setType(String type) {
this.type = type;
}

public List<AdminUser> getUsers() {
return users;
}

public void setUsers(List<AdminUser> users) {
this.users = users;
}

@Override
public String toString() {
return new ToStringBuilder(this)
.append("type", type)
.append("users", users)
.toString();
}
}

public class AdminUser {
private String name;
private String pwd;
private List<String> ip;

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public List<String> getIp() {
return ip;
}

public void setIp(List<String> ip) {
this.ip = ip;
}

public String getPwd() {
return pwd;
}

public void setPwd(String pwd) {
this.pwd = pwd;
}

@Override
public String toString() {
return new ToStringBuilder(this).append("name", name)
.append("pwd", pwd).append("ip", ip).toString();
}
}