问如何将Java Map序列化为PHP的数组序列化格式
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Stack Overflow用户

提问于 2018-09-21 09:10:11

回答 2查看 306关注 0票数 1

我想将HashMap转换为String，它对应于下面描述的PHP的数组序列化格式：

http://php.net/manual/en/function.serialize.php

例如：

a:5:{s:5:"width";i:450;s:6:"height";i:352;s:4:"file";s:32:"2018/09/Sawtooth-Oak_450_a-1.jpg";s:5:"sizes";a:9:{s:9:"thumbnail";a:4:{s:4:"file";s:32:"Sawtooth-Oak_450_a-1-150x150.jpg";s:5:"width";i:150;s:6:"height";i:150;s:9:"mime-type";s:10:"image/jpeg";}s:6:"medium";a:4:{s:4:"file";s:32:"Sawtooth-Oak_450_a-1-300x235.jpg";s:5:"width";i:300;s:6:"height";i:235;s:9:"mime-type";s:10:"image/jpeg";}s:32:"twentyseventeen-thumbnail-avatar";a:4:{s:4:"file";s:32:"Sawtooth-Oak_450_a-1-100x100.jpg";s:5:"width";i:100;s:6:"height";i:100;s:9:"mime-type";s:10:"image/jpeg";}s:21:"woocommerce_thumbnail";a:5:{s:4:"file";s:32:"Sawtooth-Oak_450_a-1-250x250.jpg";s:5:"width";i:250;s:6:"height";i:250;s:9:"mime-type";s:10:"image/jpeg";s:9:"uncropped";b:1;}s:18:"woocommerce_single";a:4:{s:4:"file";s:32:"Sawtooth-Oak_450_a-1-350x274.jpg";s:5:"width";i:350;s:6:"height";i:274;s:9:"mime-type";s:10:"image/jpeg";}s:29:"woocommerce_gallery_thumbnail";a:4:{s:4:"file";s:32:"Sawtooth-Oak_450_a-1-100x100.jpg";s:5:"width";i:100;s:6:"height";i:100;s:9:"mime-type";s:10:"image/jpeg";}s:12:"shop_catalog";a:4:{s:4:"file";s:32:"Sawtooth-Oak_450_a-1-250x250.jpg";s:5:"width";i:250;s:6:"height";i:250;s:9:"mime-type";s:10:"image/jpeg";}s:11:"shop_single";a:4:{s:4:"file";s:32:"Sawtooth-Oak_450_a-1-350x274.jpg";s:5:"width";i:350;s:6:"height";i:274;s:9:"mime-type";s:10:"image/jpeg";}s:14:"shop_thumbnail";a:4:{s:4:"file";s:32:"Sawtooth-Oak_450_a-1-100x100.jpg";s:5:"width";i:100;s:6:"height";i:100;s:9:"mime-type";s:10:"image/jpeg";}}s:10:"image_meta";a:12:{s:8:"aperture";s:1:"0";s:6:"credit";s:0:"";s:6:"camera";s:0:"";s:7:"caption";s:0:"";s:17:"created_timestamp";s:1:"0";s:9:"copyright";s:0:"";s:12:"focal_length";s:1:"0";s:3:"iso";s:1:"0";s:13:"shutter_speed";s:1:"0";s:5:"title";s:0:"";s:11:"orientation";s:1:"0";s:8:"keywords";a:0:{}}}

我从下面的测试地图开始：

        HashMap images2 = new HashMap();
        images2.put("test1", "t1");

        imagesArray.put("width", image.getWidth());
        imagesArray.put("height", image.getHeight());
        imagesArray.put("file", destinationFile);
        imagesArray.put("sizes", images2);

String jsonResult = mapper.writerWithDefaultPrettyPrinter()
                                .writeValueAsString(imageMap);

                        System.out.println(jsonResult);

结果是：

    {
  "file" : "/images/bolivia.jpg",
  "sizes" : {
    "test1" : "t1"
  },
  "width" : 450,
  "height" : 450
}

java

arrays

serialization

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回答 2

Stack Overflow用户

发布于 2018-09-21 10:36:56

好的，我找到了解决方案--我将使用

<!-- https://mvnrepository.com/artifact/com.xk72/pherialize -->
<dependency>
    <groupId>com.xk72</groupId>
    <artifactId>pherialize</artifactId>
    <version>1.2.4</version>
</dependency>

票数 0

Stack Overflow用户

发布于 2018-09-21 23:21:02

考虑使用Google的protobufs (原型缓冲区)。Protobuf是用多种语言实现的，包括Java、Python、C++等等。

它具有独立于语言的优点--您可以定义buffer结构，并将定义文件编译成您选择的语言。

下面是一个包含2个字段的协议的简单示例，只是为了给出一个概念：

syntax = "proto2";
message CookiejarTransaction {
    optional string action = 1; // Action is either "bake" or "eat"
    optional uint32 amount = 2; // Amount is number of cookies
}