我有一个庞大的信息数据库，我需要减少它的大小，因为它非常大而且非常费力。什么是最好的方法来“压缩”然后使用javascript扩展它？
有什么工具可以帮我吗？ （Dean Edward的包装不够，而且没有gzip）
我正在寻找能够利用所有允许的javascript变量并寻找模式（有许多模式）的东西，类似于zip压缩的工作方式。
以下是我的数据库结构的示例（最终结果必须采用此格式）：
var crops = {
Jan1: {
Apple: [1995, 1996, 1998, 2003, 2007, 2008, 2009],
Banana: [1995, 1998, 2001, 2002, 2003, 2007, 2008, 2009],
Cantaloupe: [2000, 2003, 2004, 2005, 2006, 2007],
Date: [1995, 1998, 2001, 2002, 2003, 2004, 2007],
Elephant: [1995, 2002, 2004, 2007, 2009],
Fig: [1996, 2003, 2004, 2005, 2006, 2007],
Grape: [1999, 2000, 2001, 2004, 2006, 2008],
Honeydew: [2001, 2005, 2008],
Ita: [1997, 2000, 2001, 2002, 2004, 2005],
Jasmine: [1997, 1998, 2002, 2004, 2005, 2007, 2008],
Kiwi: [1997, 1998, 2003],
Lemon: [1995, 1997, 2001, 2003, 2004, 2007, 2009],
Melon: [1995, 1997, 2000, 2003, 2005],
Nectarine: [1996, 1998, 2000, 2002, 2007],
Orange: [1996, 1998, 2000, 2003, 2007],
Pineapple: [1996, 1997, 1999, 2000, 2002, 2003, 2005, 2007, 2008, 2009],
Quince: [1995, 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008],
Raspberry: [1995, 1996, 1997, 1998, 2000, 2001, 2002, 2007],
Strawberry: [2002, 2003, 2006, 2008],
Tangerine: [1995, 1997, 1998, 1999, 2006, 2008],
Ugli: [1997, 2001, 2002, 2006, 2009],
Vanilla: [1998, 1999, 2001, 2002, 2004, 2005],
Watermelon: [1997, 1998, 2001, 2002, 2003, 2005],
Xigua: [1996, 2001, 2002, 2003, 2004, 2005, 2006],
Yali: [1997, 1998, 1999, 2000, 2001, 2002, 2005, 2006, 2009],
Zucchini: [2001, 2002]
},
Jan2: {
Banana: [2005, 2009],
Cantaloupe: [2006],
Grape: [1997, 2005, 2006, 2007],
Honeydew: [1999],
Ita: [2001, 2002],
Jasmine: [1999],
Kiwi: [2008, 2009],
Nectarine: [2001],
Orange: [1997, 2008],
Quince: [2005],
Raspberry: [2002],
Strawberry: [2004],
Vanilla: [1995, 1999],
Watermelon: [1997, 2002],
Xigua: [2006, 2007],
Yali: [2001, 2005],
Zucchini: [2004]
},
Jan3: {
Apple: [1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009],
Banana: [1997, 1998, 2001, 2006],
Cantaloupe: [1995, 1996, 1997, 1998, 1999, 2000, 2002, 2006, 2008],
Date: [1995, 1998, 1999, 2000, 2001, 2005, 2007, 2008, 2009],
Elephant: [1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2006, 2007],
Fig: [1998, 1999, 2000, 2002, 2003, 2009],
Grape: [1997, 1998, 2002, 2005, 2006, 2007],
Honeydew: [1995, 1996, 2000, 2001, 2002, 2003, 2005, 2006, 2007, 2008],
Ita: [1995, 1996, 2000, 2001, 2004, 2005, 2008, 2009],
Jasmine: [1995, 1999, 2002, 2007, 2008],
Kiwi: [1996, 2003, 2006, 2008, 2009],
Lemon: [1995, 1996, 1999, 2002, 2006, 2007, 2009],
Melon: [1997, 1999, 2002, 2005, 2008],
Nectarine: [1998, 2000, 2002, 2004, 2005, 2008],
Orange: [1995, 1997, 2000, 2002, 2005, 2007, 2009],
Pineapple: [1998, 2001, 2002, 2004, 2005, 2007, 2009],
Quince: [1995, 1997, 2000, 2002, 2004, 2005, 2006, 2007, 2009],
Raspberry: [1995, 1996, 1997, 1998, 2002, 2004, 2007, 2008],
Strawberry: [1996, 1997, 1999, 2000, 2006],
Tangerine: [1999, 2001, 2004, 2007, 2008],
Ugli: [1995, 1997, 1998, 1999, 2000, 2006, 2007, 2009],
Vanilla: [1996, 1997, 2003, 2006, 2008],
Watermelon: [1995, 1997, 1999, 2002, 2003, 2005],
Xigua: [1996, 1997, 1999, 2001, 2004, 2006, 2008, 2009],
Yali: [1996, 1998, 2001, 2003, 2004, 2005, 2007, 2008],
Zucchini: [1997, 2003, 2006, 2007, 2009]
},
Jan4: {
Apple: [2000, 2002, 2003],
Cantaloupe: [2009],
Elephant: [2003],
Fig: [2001, 2008],
Honeydew: [2001],
Pineapple: [2004],
Quince: [1999],
Ugli: [2009],
Vanilla: [2005],
Yali: [2007]
},
Feb1: {
Apple: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009],
Banana: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009],
Cantaloupe: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Date: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009],
Elephant: [1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009],
Fig: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Grape: [1995, 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Honeydew: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Ita: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009],
Jasmine: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Kiwi: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Lemon: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Melon: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Nectarine: [1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Orange: [1995, 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Pineapple: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Quince: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008],
Raspberry: [1995, 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Strawberry: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007, 2009],
Tangerine: [1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008],
Ugli: [1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Vanilla: [1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009],
Watermelon: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2004, 2006, 2007, 2009],
Xigua: [1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Yali: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009],
Zucchini: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009]
},
Feb2: {
Apple: [1995, 1996, 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Banana: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2008, 2009],
Cantaloupe: [1995, 1996, 1997, 1998, 1999, 2001, 2004, 2005, 2006, 2007],
Date: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009],
Elephant: [1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Fig: [1995, 1996, 1997, 1998, 1999, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Grape: [1995, 1996, 1998, 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Honeydew: [1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Ita: [1995, 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Jasmine: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007, 2008],
Kiwi: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2006, 2007, 2009],
Lemon: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008],
Melon: [1995, 1996, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Nectarine: [1995, 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Orange: [1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Pineapple: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009],
Quince: [1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2006, 2007, 2008, 2009],
Raspberry: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Strawberry: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009],
Tangerine: [1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009],
Ugli: [1995, 1997, 1998, 1999, 2000, 2001, 2003, 2006, 2008, 2009],
Vanilla: [1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2008],
Watermelon: [1997, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2009],
Xigua: [1995, 1996, 1997, 1999, 2000, 2001, 2002, 2005, 2006, 2007, 2008, 2009],
Yali: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2006, 2007, 2008, 2009],
Zucchini: [1995, 1997, 1998, 1999, 2001, 2003, 2006, 2007, 2008, 2009]
},
Feb3: {
Apple: [1996, 1997, 2003, 2004],
Banana: [1998],
Cantaloupe: [1996, 1997, 1999, 2000],
Date: [1996, 1997, 2006],
Elephant: [2004],
Fig: [1995, 1996, 2001, 2006, 2008],
Grape: [2003],
Honeydew: [2004],
Ita: [1997, 2009],
Jasmine: [1999, 2004, 2006, 2008],
Kiwi: [1999, 2002, 2003, 2006],
Lemon: [1995, 1997, 2004],
Melon: [2008],
Nectarine: [1995, 1998, 2005],
Orange: [2003, 2009],
Pineapple: [1995, 2001],
Quince: [1995, 1996, 2000, 2004, 2005, 2006],
Raspberry: [1996, 1999, 2000, 2003, 2009],
Strawberry: [1995, 1998, 2001, 2004, 2008],
Tangerine: [1996, 1998, 2002],
Ugli: [2008],
Vanilla: [1996, 2007, 2009],
Watermelon: [2006, 2008],
Xigua: [1998, 1999, 2002, 2005, 2009],
Yali: [1996, 2000, 2001, 2002, 2004],
Zucchini: [1998, 2000, 2003, 2007]
},
Feb4: {
Apple: [1995, 1996, 1997, 1998, 2000, 2002, 2003, 2006, 2009],
Banana: [1995, 1996, 1997, 2000, 2002, 2004, 2005, 2007, 2008, 2009],
Cantaloupe: [1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008],
Date: [1995, 1997, 1998, 2000, 2001, 2002, 2004, 2005, 2008, 2009],
Elephant: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2006, 2007, 2008, 2009],
Fig: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2007, 2008, 2009],
Grape: [1995, 1996, 1997, 1998, 2003, 2005, 2006, 2007, 2008],
Honeydew: [1995, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009],
Ita: [1995, 1997, 1999, 2000, 2001, 2006, 2007, 2008, 2009],
Jasmine: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009],
Kiwi: [1995, 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2007, 2008],
Lemon: [1995, 1996, 1998, 1999, 2000, 2001, 2003, 2005, 2006, 2007, 2008, 2009],
Melon: [1995, 1996, 1998, 2000, 2002, 2003, 2005, 2006, 2007, 2008],
Nectarine: [1996, 1997, 1998, 2000, 2003, 2004, 2006, 2007, 2008, 2009],
Orange: [1996, 1998, 1999, 2000, 2001, 2002, 2003, 2006, 2008],
Pineapple: [1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009],
Quince: [1995, 1996, 1997, 1998, 1999, 2000, 2002, 2004, 2005, 2007, 2009],
Raspberry: [1997, 2002, 2004, 2005, 2006, 2007, 2008, 2009],
Strawberry: [1995, 1996, 1997, 1998, 2000, 2001, 2004, 2007, 2008],
Tangerine: [1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008],
Ugli: [1995, 1996, 1997, 1998, 1999, 2001, 2003, 2007, 2008, 2009],
Vanilla: [1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009],
Watermelon: [1995, 1996, 1997, 1998, 1999, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Xigua: [1996, 1997, 1998, 2000, 2003, 2005, 2007, 2008, 2009],
Yali: [1995, 1997, 1998, 2005, 2007, 2008],
Zucchini: [1995, 1996, 1997, 2000, 2003, 2005, 2006, 2007, 2008, 2009]
},
Mar1: {
Apple: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Banana: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Cantaloupe: [1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Date: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Elephant: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Fig: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Grape: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Honeydew: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Ita: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Jasmine: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Kiwi: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Lemon: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Melon: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Nectarine: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009],
Orange: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Pineapple: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Quince: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Raspberry: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008],
Strawberry: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Tangerine: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Ugli: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Vanilla: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Watermelon: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Xigua: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Yali: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009],
Zucchini: [1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009]
}
/* Much much more */
}
答案 0 :(得分：1)
您需要压缩数据。你有12个月，（比如说）20个水果，以及可能有下限的一系列年份。存储数据如下：
{[1,[1,[1,2,4]],[2,[4,6,7]]],[2,[1,[4,5,6]]], ... }
每个数组元素都是：
[month, [fruit, [year1, year2, year3,...]]]
如果你需要以长篇形式处理它，你可以通过参考轻松转换它。
1 = Apple，2 =香蕉，......
1 = 1月，2 = 2月，...
1 = 1995年，2 = 1996年，......
答案 1 :(得分：0)
您可以将水果，日和年的每个组合存储为一个位。 如果你让Apple为1，Banana bit 2等等你每天得到26位。您可以在32位整数中存储26位。 所以每年需要365个整数（闰年除外366个）或1460个字节。
这将是您的数据存储。然后你可以在javascript中解压缩个别（或所有）天。
答案 2 :(得分：0)
如果程序是通过线路传输太多数据，那么这将有所帮助：从年份中减去标准值并删除任何不必要的空格。在这里，我从数字中减去了2000。
// Before.
Jan1: {
Apple: [1995, 1996, 1998, 2003, 2007, 2008, 2009],
// After.
Jan1:{Apple:[-5,-4,-2,3,7,8,9],
您可以使用inflate / gzip压缩数据。大多数浏览器都支持此功能。设置取决于您的Web服务器。另外：我不确定这是否受到AJAX所依赖的对象XmlHttpRequest的支持。
答案 3 :(得分：0)
Alexei White在online JS compression上发布了博客文章（以及概念验证）（如果在客户端缓存，则会使JS足迹变小）。然而，他的解决方案仍然很慢，使用尖端的Chrome。我尝试了你的样本数据，它锁定浏览器约5秒钟。
答案 4 :(得分：0)
为什么必须使用Javascript？难道你不能把它放在真实数据库的服务器上，然后通过服务或OData公开数据，以便页面可以查询它吗？