23 Star 291 Fork 66

noear / snack3

加入 Gitee
与超过 1200万 开发者一起发现、参与优秀开源项目,私有仓库也完全免费 :)
免费加入
克隆/下载
贡献代码
同步代码
取消
提示: 由于 Git 不支持空文件夾,创建文件夹后会生成空的 .keep 文件
Loading...
README
Apache-2.0

Snack3 for java

一个高性能的 JsonPath 框架

Maven Apache 2 jdk-8+
gitee star github star



基于jdk8,80kb。支持:序列化反序列化、解析和转换、构建、查找、Json path 查询。

<dependency>
  <groupId>org.noear</groupId>
  <artifactId>snack3</artifactId>
  <version>3.2.96</version>
</dependency>

Snack3 借鉴了 Javascript 所有变量由 var 申明,及 Xml dom 一切都是 Node 的设计。其下一切数据都以ONode表示,ONode也即 One node 之意,代表任何类型,也可以转换为任何类型。

  • 强调文档树的操控和构建能力
  • 高性能Json path查询(兼容性和性能很赞)
  • 顺带支持序列化、反序列化
  • 基于 无参构造函数 + 字段 操作实现(因注入而触发动作的风险,不会有)

性能测试

每个表达式,跑1000000次的时间:

Json path 表达式 数据 fastjson2 json-path snack3
$..a A 764ms 2633ms 225ms
$..* A (不兼容1) 3220ms 315ms
$.data.list[1,4] A 524ms 782ms 133ms
$.data.list[1:4] A 367ms 941ms 145ms
$.data.ary2[1].a A 329ms 663ms 84ms
$.data.ary2[*].b.c A 642ms 1050ms 237ms
$..b[?(@.c == 12)] B (不兼容2) 5636ms 535ms
$..c.min() B (不兼容2) (不兼容2) 282ms
$[?(@.c =~ /a+/)] C (不兼容2) 3591ms 429ms
$..ary2[0].a A 735ms 2551ms 311ms
$.data.list[?(@ in $..ary2[0].a)] A (不兼容2) 5483ms 674ms

具体可见:

放几个示例

//demo0::字符串化
String json = ONode.stringify(user); 

//美化格式的字符串化
String json = ONode.load(user, Feature.PrettyFormat).toJson();


//demo1::序列化
// -- 输出带@type
String json = ONode.serialize(user); 

//demo2::反序列化
// -- json 有已带@type
UserModel user = ONode.deserialize(json); 
// -- json 可以不带@type (clz 申明了)
UserModel user = ONode.deserialize(json, UserModel.class); 
// -- json 可以不带@type,泛型方式输出(类型是已知的)
List<UserModel> list = ONode.deserialize(json, (new ArrayList<UserModel>(){}).getClass());
// -- 或者
List<UserModel> list = ONode.deserialize(json, (new TypeRef<List<UserModel>>(){}).getType());

//demo3::转为ONode
ONode o = ONode.loadStr(json); //将json String 转为 ONode
ONode o = ONode.loadObj(user); //将java Object 转为 ONode

//demo3.1::转为ONode,取子节点进行序列化
ONode o = ONode.loadStr(json);
UserModel user = o.get("user").toObject(UserModel.class);


//demo4:构建json数据(极光推送的rest api调用)
public static void push(Collection<String> alias_ary, String text)  {
    ONode data = new ONode().build((d)->{
        d.getOrNew("platform").val("all");

        d.getOrNew("audience").getOrNew("alias").addAll(alias_ary);

        d.getOrNew("options")
                .set("apns_production",false);

        d.getOrNew("notification").build(n->{
            n.getOrNew("ios")
                    .set("alert",text)
                    .set("badge",0)
                    .set("sound","happy");
        });
    });

    String message = data.toJson();
    String author = Base64Util.encode(appKey+":"+masterSecret);

    Map<String,String> headers = new HashMap<>();
    headers.put("Content-Type","application/json");
    headers.put("Authorization","Basic "+author);

    HttpUtil.postString(apiUrl, message, headers);
}

//demo5:取值
o.get("name").getString();
o.get("num").getInt();
o.get("list").get(0).get("lev").getInt();

//demo5.1::取值并转换
UserModel user = o.get("user").toObject(UserModel.class); //取user节点,并转为UserModel

//demo5.2::取值或新建并填充
o.getOrNew("list2").fill("[1,2,3,4,5,5,6]");


//demo6::json path //不确定返回数量的,者会返回array类型
//找到所有的187开头的手机号,改为186,最后输出修改后的json
o.select("$..mobile[?(@ =~ /^187/)]").forEach(n->n.val("186")).toJson();
//找到data.list[1]下的的mobile字段,并转为long
o.select("$.data.list[1].mobile").getLong();
//如果没有则创建,并赋值
o.selectOrNew("$.test.list[2]").val(12);        

//查找所有手机号,并转为List<String> 
List<String> list = o.select("$..mobile").toObject(List.class);
//查询data.list下的所有mobile,并转为List<String>
List<String> list = o.select("$.data.list[*].mobile").toObject(List.class);
//找到187手机号的用户,并输出List<UserModel>
List<UserModel> list = o.select("$.data.list[?(@.mobile =~ /^187/)]")
                        .toObjectList(UserModel.class);
//或
List<UserModel> list = o.select("$.data.list[?(@.mobile =~ /^187/)]")
                        .toObjectList(UserModel.class);


//demo7:遍历
//如果是个Object
o.forEach((k,v)->{
  //...
});
//如果是个Array
o.forEach((v)->{
  //...
});

高级定制

Options options = Options.def();
//添加编码器
options.addEncoder(Date.class, (data, node) -> {
    node.val().setString(DateUtil.format(data, "yyyy-MM-dd"));
});
//添加解码器
options.addDecoder(Date.class, ...);

//添加特性
options.add(Feature.PrettyFormat);

//移除特性
options.remove(Feature.PrettyFormat);

//设置日期格式附
options.add(Feature.WriteDateUseFormat); //使用日期格式
options.setDateFormat("yyyy-MM");

//..

String json = ONode.loadObj(orderModel, options).toJson();

关于序列化的特点

对象(可以带type)

{"a":1,"b":"2"}
//或
{"@type":"...","a":1,"b":"2"}

数组

[1,2,3]
//或
[{"@type":"...","a":1,"b":"2"},{"@type":"...","a":2,"b":"10"}]

注解定制

public enum BookType {
    NOVEL(2,"小说"),
    CLASSICS(3,"名著"),
    ;

    @ONodeAttr public final int code; //使用 code 做为序列化的字段
    public final String des;
    BookType(int code, String des){this.code=code; this.des=des;}
}

public class Book {
    String name;
    BookType type;
    @ONodeAttr(serialize=false) String author; //不序列化
    @ONodeAttr(format="yyyy-MM-dd") Date releaseTime; //格式化时间输出
}

关于Json path的支持

  • 字符串使用单引号,例:['name']
  • 过滤操作用空隔号隔开,例:[?(@.type == 1)]
支持操作 说明
$ 表示根元素
@ 当前节点(做为过滤表达式的谓词使用)
* 通用配配符,可以表示一个名字或数字。
.. 深层扫描。 可以理解为递归搜索。
.<name> 表示一个子节点
['<name>' (, '<name>')] 表示一个或多个子节点
[<number> (, <number>)] 表示一个或多个数组下标(负号为倒数)
[start:end] 数组片段,区间为[start,end),不包含end(负号为倒数)
[?(<expression>)] 过滤表达式。 表达式结果必须是一个布尔值。
[?(@.<name>)] 过滤表达式。 表示有一个子节点。
支持过滤操作符(操作符两边要加空隔) 说明
== left等于right(注意1不等于'1')
!= 不等于
< 小于
<= 小于等于
> 大于
>= 大于等于
=~ 匹配正则表达式[?(@.name =~ /foo.*?/i)]
in 左边存在于右边 [?(@.size in ['S', 'M'])]
nin 左边不存在于右边
支持尾部函数 说明
min() 计算数字数组的最小值
max() 计算数字数组的最大值
avg() 计算数字数组的平均值
sum() 计算数字数组的汇总值(新加的)
size() 大小(当对象或数组时有效)
length() 当字符串时,为字符串长度;否则为大小
keys() 当对象时返回所有key;否则为null

例:n.select("$.store.book[0].title")n.select("$['store']['book'][0]['title']")

例:n.select("$..book.price.min()") //找到最低的价格

Snack3 接口字典

Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

简介

高性能 Jsonpath 框架 展开 收起
Java
Apache-2.0
取消

发行版 (31)

全部

贡献者

全部

近期动态

加载更多
不能加载更多了
Java
1
https://gitee.com/noear/snack3.git
git@gitee.com:noear/snack3.git
noear
snack3
snack3
master

搜索帮助