List<Map<String, Object>> data = Arrays.asList(
时间: 2023-10-29 09:49:32 浏览: 36
It seems like your code is incomplete. Could you please provide more context or the complete code snippet so that I can better understand what you are trying to achieve?
相关问题
mybatis 返回LIst<List<String>>
MyBatis可以返回List<List<String>>,这样的数据结构。可以使用嵌套查询或者使用结果集映射来实现。下面是一些示例代码:
1. 使用嵌套查询:
```java
@Select("SELECT * FROM table")
@Results({
@Result(column = "id", property = "id"),
@Result(column = "name", property = "name"),
@Result(column = "details", property = "details", javaType = List.class, many = @Many(select = "getDetails"))
})
List<Map<String, Object>> getData();
@Select("SELECT details FROM table_details WHERE id = #{id}")
List<String> getDetails(int id);
```
2. 使用结果集映射:
```java
@Select("SELECT * FROM table")
@Results({
@Result(column = "id", property = "id"),
@Result(column = "name", property = "name"),
@Result(column = "details", property = "details", javaType = List.class, typeHandler = ListTypeHandler.class)
})
List<Data> getData();
public class Data {
private int id;
private String name;
private List<List<String>> details;
// getters and setters
}
@MappedTypes(List.class)
@MappedJdbcTypes(JdbcType.VARCHAR)
public class ListTypeHandler extends BaseTypeHandler<List<String>> {
@Override
public void setNonNullParameter(PreparedStatement ps, int i, List<String> parameter, JdbcType jdbcType) throws SQLException {
// 将List转换为字符串,存储到数据库中
String detailsString = String.join(",", parameter);
ps.setString(i, detailsString);
}
@Override
public List<String> getNullableResult(ResultSet rs, String columnName) throws SQLException {
// 从数据库中读取字符串,转换为List
String detailsString = rs.getString(columnName);
return Arrays.asList(detailsString.split(","));
}
// 其他方法省略...
}
```
这些代码示例中,使用了@Select注解来定义查询语句,@Results注解用于配置结果集映射。对于嵌套查询,可以使用@Many注解指定要执行的子查询语句。对于结果集映射,可以使用自定义的TypeHandler来处理List<List<String>>类型的数据。
public List<String> getPermissionByType() { String userIdString = request.getHeader(Consts.USER_ID); Long userId = Long.valueOf(userIdString); // 先去查 redis里面有没有对应的 key String key = "DataPermission:" + userIdString; Map<String, List<String>> userDataPermissionMap = (Map<String, List<String>>) redisTemplate.opsForValue().get(key); List<String> result = new ArrayList<>(); // 当前用户权限类型 String mallType = menuInfoService.getMallType(userIdString); String type; if (MallPermissionEnums.NO_PERMISSION.equalsStr(mallType)){ return new ArrayList<>(); } else if (MallPermissionEnums.BOUTIQUE.equalsStr(mallType)){ type = AccountAccessTypeEnums.BOUTIQUE_SO_TYPE.getCode(); } else if (MallPermissionEnums.AFTER_SALES.equalsStr(mallType)){ type = AccountAccessTypeEnums.SUB_ORDER_TYPE.getCode(); } else { type = AccountAccessTypeEnums.ALL.getCode(); } if (ObjectUtils.isEmpty(userDataPermissionMap) || ObjectUtils.isEmpty(userDataPermissionMap.values())){ Map<String, List<String>> resultMap = setUserDataPermissionToRedis(key,userId); if (AccountAccessTypeEnums.ALL.getCode().equals(type)){ resultMap.values().forEach(result::addAll); return result; } else { return resultMap.get(type); } } else if (AccountAccessTypeEnums.ALL.getCode().equals(type)){ userDataPermissionMap.values().forEach(result::addAll); return result; } else { return userDataPermissionMap.get(type); } }对以上代码编写单元测试
Sure! Here's an example of how you can write a unit test for the given code snippet using JUnit and Mockito:
```java
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.springframework.data.redis.core.RedisTemplate;
import java.util.*;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.mockito.Mockito.when;
public class PermissionTest {
@Mock
private RedisTemplate<String, Object> redisTemplate;
@Mock
private MenuInfoService menuInfoService;
@InjectMocks
private YourClassName yourClassName;
@BeforeEach
public void setup() {
MockitoAnnotations.initMocks(this);
}
@Test
public void testGetPermissionByType() {
// Mocking the request header
String userIdString = "123";
when(request.getHeader(Consts.USER_ID)).thenReturn(userIdString);
// Mocking the redis data
Map<String, List<String>> userDataPermissionMap = new HashMap<>();
userDataPermissionMap.put(AccountAccessTypeEnums.BOUTIQUE_SO_TYPE.getCode(), Arrays.asList("permission1", "permission2"));
when(redisTemplate.opsForValue().get("DataPermission:" + userIdString)).thenReturn(userDataPermissionMap);
// Mocking the menuInfoService.getMallType() response
when(menuInfoService.getMallType(userIdString)).thenReturn(MallPermissionEnums.BOUTIQUE.getStr());
// Calling the method to be tested
List<String> result = yourClassName.getPermissionByType();
// Asserting the result
List<String> expected = Arrays.asList("permission1", "permission2");
assertEquals(expected, result);
}
}
```
In this unit test, we use Mockito to mock the dependencies (`redisTemplate`, `menuInfoService`) and inject them into the instance of the class being tested (`yourClassName`). We then mock the necessary method calls and set the expected values for the test case. Finally, we call the method `getPermissionByType()` and assert the expected result against the actual result.
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