我希望在java1.7的代码中不使用lambda表达式来转换它们

Question

public Collection<? extends GrantedAuthority> getAuthorities() {
return getRoles().stream()
.map(role -> new SimpleGrantedAuthority(role.getRole().name()))
.collect(Collectors.toList());
}

//我想在java1.7的代码中不使用lambda表达式来转换这些

Answer 1

假设getRoles()返回List<Role>，则结果如下：

List<SimpleGrantedAuthority> simpleGrantedAuthorities = new ArrayList<>();
for (Role role : getRoles()) {
simpleGrantedAuthorities.add(new SimpleGrantedAuthority(role.getRole().name()));
}
return simpleGrantedAuthorities;