solr6之solrJ的使用

1、solrJ客户端实例创建并设置连接超时时间：

final String solrUrl = "http://127.0.0.1:8080/solr";
//创建solrClient同时指定超时时间，不指定走默认配置
HttpSolrClient build = new HttpSolrClient.Builder(solrUrl)
                .withConnectionTimeout(10000)
                .withSocketTimeout(60000)
                .build();

不同solr版本solrj 的创建方式有所不同

//solr4创建方式
//SolrServer solrServer = new HttpSolrServer("http://127.0.0.1:8080/solr");  
//solr5创建方式,在url中指定core名称：core1
//HttpSolrClient solrServer=new HttpSolrClient("http://127.0.0.1:8080/solr/core1");
//solr7创建方式,在url中指定core名称：core1
HttpSolrClient solrServer= new HttpSolrClient.Builder("http://127.0.0.1:8080/solr/core1").build();

注意：solr5以后URL指向自定义核心的名称，如实例名称是core1，那么URL为http://127.0.0.1:8080/solr/core1

solrJ之查询

 /**
     * @Description:查询
     * @throws SolrServerException
     * @throws IOException
     */
    public void querySolr() throws SolrServerException, IOException{
	//获取连接
	HttpSolrClient solrClient= new HttpSolrClient.Builder(solr_url).build();
	//封装查询条件
	Map<String,String> query = new HashMap<String, String>();
	//q在sole中表示条件,*:*表示查询所有结果
	query.put("q","*:*");
	//添加到MapSolrParams对象
	MapSolrParams queryParams =  new MapSolrParams(query);
	//执行查询,返回结果
	QueryResponse response = solrClient.query(queryParams);
	//获取doc文档
	SolrDocumentList list = response.getResults();
	for (SolrDocument solrDocument : list) {
	    System.out.println("id:" + solrDocument.get("id")  + "\name:"
		    + solrDocument.get("name"));
		   
	}
	//关闭连接
	solrClient.close();
	
    }

solrJ之新增索引

 /**
     * @throws IOException 
     * @throws SolrServerException 
     * @Description:添加
     */
    public void solrAdd() throws SolrServerException, IOException{
	//获取连接
	SolrClient solrClient = new HttpSolrClient.Builder(solr_url).build();
	//创建文档doc
	SolrInputDocument solrInputDocument = new SolrInputDocument();
	//添加内容
	String id = UUID.randomUUID().toString();
	String name = "李四";
	solrInputDocument.addField("id", id);
	solrInputDocument.addField("name", name);
	//添加到client
	UpdateResponse updateResponse = solrClient.add(solrInputDocument);
	System.out.println(updateResponse.getElapsedTime());
	//提交
	solrClient.commit();
	solrClient.close();
    }

solrJ之删除索引

    /**
     * @Description:通过id删除
     * @throws SolrServerException
     * @throws IOException
     */
    public void delete() throws SolrServerException, IOException{
	//获取连接
	SolrClient solrClient = new HttpSolrClient.Builder(solr_url).build();
	//通过id删除
	String id = "1";
	solrClient.deleteById(id);
	//提交
	solrClient.commit();
	solrClient.close();
	
    }
    

---

JavaBean绑定

SolrJ支持通过@Field注解隐式转换文档与任何类。每个实例变量在Java对象可以映射到一个相应的Solr字段.

在managed-schema文件中添加字段
managed-schema位于你的core的conf目录下

	<field name="user_name" type="text_ik" indexed="true" stored="true"/>
	<field name="user_sex" type="string" indexed="true" stored="true"/>
	<field name="user_age" type="string" indexed="true" stored="true"/>
	<field name="user_like" type="string" indexed="true" stored="true" multiValued="true"/>
	<field name="user_context" type="text_ik" indexed="true" stored="true"/>

在javaBean中配置注解
@Field(“value”) value与 field 中 name相同,以将javabean属性映射到field中

public class User {
    
    @Field("id")
    private String id;
    @Field("user_name")
    private String name;
    @Field("user_sex")
    private String sex;
    @Field("user_age")
    private String age;
    @Field("user_like")
    private String[] like;
    @Field("user_context")
    private String context;
    
    public String getId() {
        return id;
    }
    public void setId(String id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getSex() {
        return sex;
    }
    public void setSex(String sex) {
        this.sex = sex;
    }
    public String getAge() {
        return age;
    }
    public void setAge(String age) {
        this.age = age;
    }
    public String[] getLike() {
        return like;
    }
    public void setLike(String[] like) {
        this.like = like;
    }
    public String getContext() {
        return context;
    }
    public void setContext(String context) {
        this.context = context;
    }
    public User(String id, String name, String sex, String age, String[] like,
	    String context) {
	super();
	this.id = id;
	this.name = name;
	this.sex = sex;
	this.age = age;
	this.like = like;
	this.context = context;
    }
    public User(){
	
    }
    
}

 /**
     * @Description:添加bean对象
     * @throws IOException
     * @throws SolrServerException
     */
    public void addBean() throws IOException, SolrServerException{
	//获取连接
	SolrClient solrClient = new HttpSolrClient.Builder(solr_url).build();
	//创建user
	User user = new User();
	user.setId(UUID.randomUUID().toString());
	user.setName("张五");
	user.setAge("22");
	user.setSex("男");
	String[] like = {"游泳","唱歌"};
	user.setLike(like);
	user.setContext("一个热情,开朗的人");
	//添加对象
	UpdateResponse updateResponse = solrClient.addBean(user);
	//提交
	solrClient.commit();
	solrClient.close();
    }
    
    public void getBean() throws SolrServerException, IOException{
	//获取连接
	SolrClient solrClient = new HttpSolrClient.Builder(solr_url).build();
	//创建solrQuery对象,设置条件
	SolrQuery solrQuery = new SolrQuery("user_name:张*");
	
	//添加回显内容
	solrQuery.addField("id");
	solrQuery.addField("user_name");
	solrQuery.addField("user_sex");
	solrQuery.addField("user_age");
	solrQuery.addField("user_like");
	solrQuery.addField("user_context");
	//设置每页显示多少条
	solrQuery.setRows(15);
	//执行查询
	QueryResponse queryResponse = solrClient.query(solrQuery);
	//获取doc文档
	List<User> users = queryResponse.getBeans(User.class);
	//遍历
	for (User user : users) {
	    System.out.println(
	    	"id:"+user.getId()+"\t name:"
	    	+ user.getName()+"\t age:"
	    	+ user.getAge()+"\t sex:"
	    	+ user.getSex()+"\t like:"
	    	+ user.getLike()+"\t contest:"
	    	+user.getContext()
	    );
	}
	
    }