solr 利用cul或solr界面单值更新

本文主要是指利用solr界面或cul的更新solr的值。如果需要代码中单值更新请参考黎明露珠的博客链接：http://www.cnblogs.com/limingluzhu/p/5535314.html，我在文章的最末也给出了代码单值更新的示例。

在实际的研发过程中，为方便测试往往需要更改solr字段值，但是除了依赖程序的更新solr本身界面是否支持我们进行solr字段的值更新呢，答案是肯定支持的。

详细方法请参考连接：http://yonik.com/solr/atomic-updates/

实际就是我们solr query的documents：

其示例documents 修改值方法如下：

    {

        "ADDRESSID": "89fe3cffd70311e681c8fa163ea75434",

        "MEMBERTYPE": {

            "set": "1"

        }

    }

我这的示例是json类型的，但是原理都一样的。

这里的commit，可以理解为一个拼装起来的 get请求.当然你也可以用curl来直接请求。具体示例便是下文的curl请求。

关于具体语法问题原文如下：

Solr supports several modifiers that atomically update values of a document.

set – set or replace a particular value, or remove the value if null is specified as the new value
add – adds an additional value to a list
remove – removes a value (or a list of values) from a list
removeregex – removes from a list that match the given Java regular expression
inc – increments a numeric value by a specific amount (use a negative value to decrement)

具体示例原文如下：

Update Modifier Example

First, let’s add a document representing a book:

$ curl http://localhost:8983/solr/demo/update -d '

[

 {"id" : "book1",

  "title_t" : "Snow Crash",    // text field

  "copies_i" : 5,

  "cat_ss" : "Science Fiction" // multi-valued string field

 }

]'

Now we can update that document, adding the author field, incrementing the number of copies we have, and adding an additional category:

$ curl http://localhost:8983/solr/demo/update -d '

[

 {"id"         : "book1",

  "author_s"   : {"set":"Neal Stephenson"},

  "copies_i"   : {"inc":3},

  "cat_ss"     : {"add":"Cyberpunk"}

 }

]'

Now if we retrieve the document using real-time get, we will see the updated fields:

$ curl http://localhost:8983/solr/demo/get?id=book1

{

"doc": {

"id":"book1",

"title_t":["Snow Crash"],

"copies_i":8,

"cat_ss":["Science Fiction", "Cyberpunk"],

"author_s":"Neal Stephenson",

"_version_":1408729977723027456}}

And finally, remove “Cyberpunk” from the cat field:

$ curl http://localhost:8983/solr/demo/update -d '

[

 {"id"       : "book1",

  "cat"      : {"remove":"Cyberpunk"}

 }

]'

Atomic Updates with SolrJ

Here is an example of how to do a partial update via Solr’s Java client, SolrJ:

// create the SolrJ client

HttpSolrClient client = new HttpSolrClient("http://localhost:8983/solr");

// create the document

SolrInputDocument sdoc = new SolrInputDocument();

sdoc.addField("id","book1");

Map<String,Object> fieldModifier = new HashMap<>(1);

fieldModifier.put("add","Cyberpunk");

sdoc.addField("cat", fieldModifier);  // add the map as the field value

client.add( sdoc );  // send it to the solr server

client.close();  // shutdown client before we exit

solr代码单值更新示例：

CloudSolrClient server = new CloudSolrClient(ZkHost);

        server.setParser(new XMLResponseParser());

        SolrInputDocument doc = new SolrInputDocument();

        Map<String, String> partialUpdate = new HashMap<String, String>();

        partialUpdate.put("set", memberType);

        doc.addField("ADDRESSID", addressId);//主键

        doc.addField("MEMBERTYPE", partialUpdate);

        doc.addField("LATESTUSETIME", DateUtils.getNow());