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如何從給定對象值的Java映射中移除元素。從java中給定對象值的映射中移除鍵值對
示例數據:
{
3cc612eqwdwc3-4dce-11e7-b4a2-fe984uyucc15272:[code=5
user_key=dcfb5f5f-588e-11e6-85b9-fe984cc15272
message=You have successfully logged in...
roles_name=PLATFORM_ADMIN
access_token=3cc612c3-4dce-11e7-b4a2-fe984cc15272
user_id=superadmin
utc_time=2017-06-10 11:16:23.0
roles_id=7
token_type=0
access_key=d3cd4e3f-5946-11e6-9bb0-fe984cc15272
status=true
is_valid=null
]
3cc61fdfff2c3-4dce-11e7-b4atuy2-fe984cc15272:[code=5
user_key=dcfb5f5f-588e-11e6-85b9-fe984cc15272
message=You have successfully logged in...
roles_name=PLATFORM_ADMIN
access_token=3cc612c3-4dce-11e7-b4a2-fe984cc15272
user_id=superadmin
utc_time=2017-06-10 11:16:23.0
roles_id=7
token_type=0
access_key=d3cd4e3f-5946-11e6-9bb0-fe984cc15272
status=true
is_valid=null
]
3cc612cddf3-4dce-11e7-b4a562-fe984cc15272:[code=5
user_key=dcfb5f5f-5ddd88e-11e6-85b9-fe984cc15272
message=You have successfully logged in...
roles_name=PLATFORM_ADMIN
access_token=3cc612c3-4dce-11e7-b4a2-fe984cc15272
user_id=superadmin
utc_time=2017-06-10 11:16:23.0
roles_id=7
token_type=0
access_key=d3cd4e3f-5946-11e6-9bb0-fe984cc15272
status=true
is_valid=null
]
3cc6f12c3-4dce-11e7-b4oopa2d-fe984cc15272:[code=5
user_key=dcfb5f5f-588e-11e6-85b9-fe984cc15272
message=You have successfully logged in...
roles_name=PLATFORM_ADMIN
access_token=3cc612c3-4dce-11e7-b4a2-fe984cc15272
user_id=superadmin1
utc_time=2017-06-10 11:16:23.0
roles_id=7
token_type=0
access_key=d3cd4e3f-5946-11e6-9bb0-fe984cc15272
status=true
is_valid=null
]
3cc61vc2c3-4dcdse-11ep[7-b4a2-fe984cc15272:[code=5
user_key=dcfb5f5f-5ddd88e-11e6-85b9-fe984cc15272
message=You have successfully logged in...
roles_name=PLATFORM_ADMIN
access_token=3cc612c3-4dce-11e7-b4a2-fe984cc15272
user_id=superadmin1
utc_time=2017-06-10 11:16:23.0
roles_id=7
token_type=0
access_key=d3cd4e3f-5946-11e6-9bb0-fe984cc15272
status=true
is_valid=null
]
}
對於上面的樣本數據,是否有任何方式除去含目的值user_key=dcfb5f5f-588e-11e6-85b9-fe984cc15272
所有地圖要素,而不使用環或一些其它最優化的方式。
我已經通過使用remove()
方法嘗試了此方法,但它只是使用密鑰刪除。
只需循環瀏覽您的地圖。這是唯一的方法。 –
可能重複https://stackoverflow.com/questions/9527565/how-to-remove-entry-from-hashmap-by-value – dehasi
@dehasi:感謝您的支持。它適用於字符串鍵和字符串值。請幫助刪除地圖中的對象值。 –