如何使用Java在Couchdb中存储原始JSON [英] How to store raw JSON in Couchdb with java

问题描述

我当前正在解析一个Web服务，该服务向我提供了Json Documents作为响应.我想使用Java将它们存储在CouchDb中，但是我找不到方法.使用用于Java的benchdb库(Ektorp，couchdb4j等)，我只能将Java文档存储在数据库中，这意味着我必须将原始json转换为Java Document才能存储它们. 你有什么主意，我可以直接存储原始json吗? 提前非常感谢

I am currently parsing a web service that give me Json Documents as response. I want to store those in CouchDb using java, but I cannot find a way. With the couchdb library for java (Ektorp, couchdb4j etc...) I can only store java documents in the database, which would mean I have to transform my raw json to java Document in order to store them. Do you have any idea how i could directly store raw json ? Many thanks in advance

推荐答案

Ektop文档提供了

The Ektop documentation provides an example of updating a document using JSON stored in a file:

 File file = someMethodToGetFile();
 InputStream jsonInputStream = new FileInputStream(file);
 db.update("document_id",
           jsonInputStream,
           file.length(),
           null);

如果您的JSON位于Java程序的内存中(例如，作为String)，则可以使用ByteArrayInputSteam:

Instead of using the FileInputStream, if your JSON is in memory in your java program (e.g. as a String), you could wrap the string in a ByteArrayInputSteam:

 String yourJsonString = ...

 InputStream jsonInputStream = new ByteArrayInputStream(yourJsonString.getBytes());
 db.update("document_id",
           jsonInputStream,
           file.length(),
           null);

或者，通过一个宁静的API访问CouchDB，因此您可以使用任何了解REST的Java库与CouchDB进行交互，例如，使用

Alternatively, CouchDB is accessed through a restful API so you can interact with CouchDB using any java library that understands REST, for example using Apache HttpClient:

String yourJsonString = ...

StringRequestEntity requestEntity = new StringRequestEntity(
    yourJsonString,
    "application/json",
    "UTF-8");

PostMethod postMethod = new PostMethod("http://couchdb.server/database");
postMethod.setRequestEntity(requestEntity);

int statusCode = httpClient.executeMethod(postMethod);

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