solr开发,提交索引数据的几种方式

今天抽空学习了一下solr,有新东西学习就是哈皮! 期待能有机会与实战.实例仅为个人理解学习实例.
提交到Solr服务器上的数据必须是 SolrInputDocument 类型.

方案一:利用反射,自定义转换机制

JavaBean对象转换成SolrInputDocument的方式我们可以自定义.如果我们的Model类符合JavaBean的规范,那么我们可以使用反射获取其内部信息.

    
    /** * @author [e-mail] * * 实体类与SolrInputDocument转换 [测试通过] * * @param obj * 实体对象 * @return SolrInputDocument * SolrInputDocument对象 */
    public static SolrInputDocument entity2SolrInputDocument(Object obj) { if (obj != null) { Class<?> cls = obj.getClass(); Field[] filedArrays = cls.getDeclaredFields();                        //获取类中所有属性
            Method m = null; SolrInputDocument sid = new SolrInputDocument(); for (Field f : filedArrays) { //因为如果对象序列化之后,会增加该属性,不用对该属性进行反射
                if(!f.getName().equals("serialVersionUID")){ try { //跟进属性xx构造对应的getXx()方法
                        String dynamicGetMethod = dynamicMethodName(f.getName(), "get"); //调用构造的getXx()方法
                        m = cls.getMethod(dynamicGetMethod); //属性名,与对应的属性值 get方法获取到的值
                        LOG.info(f.getName() + ":" + m.invoke(obj)); sid.addField(""+ f.getName(), m.invoke(obj)); } catch (IllegalArgumentException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } catch (SecurityException e) { e.printStackTrace(); } catch (InvocationTargetException e) { e.printStackTrace(); } catch (NoSuchMethodException e) { e.printStackTrace(); } } } return sid; } LOG.warn("Object to convert is null."); return null; }

此时我们可以使用server中提供的添加solrInputDocument对象的方法进行数据建立索引.

    
    /** * 将对象集合添加至索引[测试通过] * @author pudongping * @param server * @param lists 自定义转换机制 */
    public static <T> void addConvertBeans(SolrServer server, List<T> lists){ try { server.add(EntityConvert.entityList2SolrInputDocument(lists)); server.commit(false, false); LOG.info("Add convert object list to index finished. "); } catch (Exception e) { LOG.error("Add convert object list to index error, " + e.getMessage(), e); } } /** * 将对象集合添加至索引[测试通过] * @author pudongping * @param server * @param lists 自定义转换机制 */
    public static <T> void addConvertBeans(SolrServer server, List<T> lists){ try { server.add(EntityConvert.entityList2SolrInputDocument(lists)); server.commit(false, false); LOG.info("Add convert object list to index finished. "); } catch (Exception e) { LOG.error("Add convert object list to index error, " + e.getMessage(), e); } } 

测试自定义转换对象建立索引.

 @Test public void addConvertBean(){ Article article1 = new Article(); article1.setId(UUID.randomUUID().toString()); List<String> title = new ArrayList<String>(); title.add("我在门后假装你人还没走"); article1.setTitle(title); article1.setAuthor("周杰伦"); SolrEngineHandler.addConvertBean(server, article1); } @Test public void addConvertBeans(){ List<Article> lists = new ArrayList<Article>(); Article art1 = new Article(); art1.setId(UUID.randomUUID().toString()); List<String> atlts1 = new ArrayList<String>(); atlts1.add("谁言别后终无悔，寒月清宵绮梦回"); atlts1.add("深知身在情长在，前尘不共彩云飞"); art1.setTitle(atlts1); art1.setAuthor("柳梦璃"); lists.add(art1); Article art2 = new Article(); art2.setId(UUID.randomUUID().toString()); List<String> atlts2 = new ArrayList<String>(); atlts2.add("萧萧衷曲无处诉；为伊故，乐所苦。"); atlts2.add("锦色芳华，岂堪人虚度？欲寄相思情万缕，捎不到，君心处。"); art2.setTitle(atlts2); art2.setAuthor("柳梦璃"); lists.add(art2); SolrEngineHandler.addConvertBeans(server, lists); }

方法二: 使用solr提供的注解机制

说明: @Field无参数时,匹配当前字段,也可以自定义,字段必须在schema.xml 中的Filed中存在.

package com.test.model; import java.io.Serializable; import java.util.List; import org.apache.commons.lang.builder.ToStringBuilder; import org.apache.solr.client.solrj.beans.Field; public class Article implements Serializable{ /** * */
    private static final long serialVersionUID = 4017316764889231758L; @Field("id") private String id; @Field("title") private List<String> title; @Field private String author;            //@Field无参数时,匹配当前字段
    
    public String getId() { return id; } public void setId(String id) { this.id = id; } public String getAuthor() { return author; } public void setAuthor(String author) { this.author = author; } public List<String> getTitle() { return title; } public void setTitle(List<String> title) { this.title = title; } @Override public String toString() { return ToStringBuilder.reflectionToString(this); } }

package com.test.model; import java.io.Serializable; import java.util.List; import org.apache.commons.lang.builder.ToStringBuilder; import org.apache.solr.client.solrj.beans.Field; public class Article implements Serializable{ /** * */
    private static final long serialVersionUID = 4017316764889231758L; @Field("id") private String id; @Field("title") private List<String> title; @Field private String author;            //@Field无参数时,匹配当前字段
    
    public String getId() { return id; } public void setId(String id) { this.id = id; } public String getAuthor() { return author; } public void setAuthor(String author) { this.author = author; } public List<String> getTitle() { return title; } public void setTitle(List<String> title) { this.title = title; } @Override public String toString() { return ToStringBuilder.reflectionToString(this); } }

使用solrJ提供的addBean(..)与addBeans(…)相关的方法添加对象

    /** * 将单个对象添加至索引 * @author pudongping * @param server * @param object solr机制进行对象转换 */
    public static void addBean(SolrServer server, Object object){ try { server.addBean(object); server.commit(false,false); LOG.info("Add object to index finished."); } catch (Exception e) { LOG.error("Add object to index error, " + e.getMessage(), e); e.printStackTrace(); } } /** * 添加集合对象至索引 [测试通过] * @author pudongping * @param <T> * @param server * @param lists 使用solr内部转换机制 */
    public static <T> void addBeans(SolrServer server, List<T> lists){ try { server.addBeans(lists); server.commit(false, false); LOG.info("Add object list to index finished. "); } catch (Exception e) { LOG.error("Add object list to index finished. "); } } 

编写junit测试

 @Test public void addBean(){ Article article1 = new Article(); article1.setId(UUID.randomUUID().toString()); List<String> title = new ArrayList<String>(); title.add("地图青岛,末世孤岛."); article1.setTitle(title); article1.setAuthor("苏若年"); SolrEngineHandler.addBean(server, article1); } @Test public void addBeans(){ List<Article> lists = new ArrayList<Article>(); Article art1 = new Article(); art1.setId(UUID.randomUUID().toString()); List<String> atlts1 = new ArrayList<String>(); atlts1.add("谁言别后终无悔，寒月清宵绮梦回"); atlts1.add("深知身在情长在，前尘不共彩云飞"); art1.setTitle(atlts1); art1.setAuthor("苏若年"); lists.add(art1); Article art2 = new Article(); art2.setId(UUID.randomUUID().toString()); List<String> atlts2 = new ArrayList<String>(); atlts2.add("萧萧衷曲无处诉；为伊故，乐所苦。"); atlts2.add("锦色芳华，岂堪人虚度？欲寄相思情万缕，捎不到，君心处。"); art2.setTitle(atlts2); art2.setAuthor("柳梦璃"); lists.add(art2); SolrEngineHandler.addBeans(server, lists); } 

 转载请注明出处:[http://www.cnblogs.com/dennisit/p/3621717.html]