SpringSecurity学习2

从数据库或者其他数据源加载用户数据

1.ApplicationContext.xml配置，根据密码是加密过和使用salt的，则在<authentication-provider>中需要配置<password-encoder>和<salt-source>

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<beans:property name="userPropertyToUse" value="salt" /> salt在UserDetail获取getSalt()方法的返回值

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2.实现UserDetailService
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package lan.model;import org.springframework.security.core.GrantedAuthority; public class Role implements GrantedAuthority {    private static final long serialVersionUID = -2431947985974407523L;    private String name;        public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    @Override    public String getAuthority() {        return name;    }    @Override    public int hashCode() {        final int prime = 31;        int result = 1;        result = prime * result + ((name == null) ? 0 : name.hashCode());        return result;    }    @Override    public boolean equals(Object obj) {        if (this == obj)            return true;        if (obj == null)            return false;        if (getClass() != obj.getClass())            return false;        Role other = (Role) obj;        if (name == null) {            if (other.name != null)                return false;        } else if (!name.equals(other.name))            return false;        return true;    }}
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