如果所述子对象的字段为public class SpringWebInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
@Override
protected Class<?>[] getServletConfigClasses() {
return new Class[] { SpringWebConfig.class };
}
@Override
protected Class<?>[] getRootConfigClasses() {
return new Class[] { SpringSecurityConfig.class, SpringPersistanceConfig.class };
}
@Override
protected String[] getServletMappings() {
return new String[] { "/", "/rest/*" };
}
}
@Configuration
@EnableWebSecurity
public class SpringSecurityConfig extends WebSecurityConfigurerAdapter {
@Autowired
@Qualifier("userDetailsService")
UserDetailsService userDetailsService;
@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(userDetailsService);
}
@Override
protected void configure(HttpSecurity http) throws Exception {
http.headers().frameOptions().sameOrigin();
http.authorizeRequests().antMatchers("/assets/**").permitAll().antMatchers("/admin/**").access("hasRole('ROLE_USER')").and().formLogin().loginPage("/login").failureUrl("/login?error").defaultSuccessUrl("/admin").usernameParameter("username").passwordParameter("password").and().logout().logoutSuccessUrl("/login?logout");
}
}
@Configuration
@EnableTransactionManagement
@ComponentScan(basePackages = { "com.rgh.*" }, excludeFilters = { @Filter(Controller.class) })
public class SpringPersistanceConfig {
@Bean
public SessionFactory sessionFactory() {
LocalSessionFactoryBuilder builder = new LocalSessionFactoryBuilder(dataSource());
builder.scanPackages("com.rgh.*.model").addProperties(getHibernateProperties());
return builder.buildSessionFactory();
}
private Properties getHibernateProperties() {
Properties properties = new Properties();
properties.put("hibernate.format.sql", "false");
properties.put("hibernate.show.sql", "true");
properties.put("hibernate.dialect", "org.hibernate.dialect.MySQL5Dialect");
properties.put("hibernate.hbm2ddl.auto", "update");
return properties;
}
@Bean(name = "dataSource")
public BasicDataSource dataSource() {
BasicDataSource dataSource = new BasicDataSource();
dataSource.setDriverClassName("com.mysql.jdbc.Driver");
dataSource.setUrl("jdbc:mysql://localhost:3306/framework");
dataSource.setUsername("root");
dataSource.setPassword("root");
return dataSource;
}
@Bean
public HibernateTransactionManager txManager() {
return new HibernateTransactionManager(sessionFactory());
}
}
@Controller
public class BaseController {
@RequestMapping(value = "/admin**", method = RequestMethod.GET)
public ModelAndView adminPage() {
ModelAndView model = new ModelAndView();
model.setViewName("/panel/admin");
return model;
}
@RequestMapping(value = "/login", method = RequestMethod.GET)
public ModelAndView login() {
ModelAndView model = new ModelAndView();
model.setViewName("/panel/login");
return model;
}
}
，我一直在努力围绕如何从查询中排除子对象。
考虑这个数据集：
local gunXRotated = playerX + r * math.cos(t)
local gunYRotated = playerY + r * math.sin(t)
现在，我不想公开密码，这很容易：
false但如果{
_id: ObjectId(...),
username: ...,
password: ...,
name: ...,
SoMe: {
facebook: {
id: ...,
name: ...,
email: ...,
public: false
}
}
}
为db.collection.findOne({ "username": "whatever" }, { "password": 0 })
，我也只想公开对象SoMe.facebook - 我该怎么做？
答案 0 :(得分：1)
请使用aggregation试用此版本，并在SoMe.facebook通过SoMe.facebook.public时显示$cond字段。
> db.collection.aggregate([
{$match: {username:'whatever'}},
{$project: {username: 1,
name:1,
SoMe: {$cond: [{$eq: ['$SoMe.facebook.public', true]},
'$SoMe.facebook',
null]}}}
])
答案 1 :(得分：0)
db.collection.find（{ “SoMe.facebook.public”：真}，{ “SoMe.facebook”：1，_id：0}）
使用此查询 应该结果像， SoMe：{ facebook：{ ID： ...， 名称： ...， 电子邮件：...， 公众：是的 }