zoukankan      html  css  js  c++  java

  • Solr使用solr4J操作索引库

     Solrj是Solr搜索服务器的一个比较基础的客户端工具，可以非常方便地与Solr搜索服务器进行交互。最基本的功能就是管理Solr索引，包括添加、更新、删除和查询等。对于一些比较基础的应用，用Solj基本够用，而且你可以非常容易地通过使用Solrj的API实现与Solr搜索服务器进行交互，实现对Solr的基本管理功能。如果你的应用比较复杂，可以扩展Solrj来满足需要。

           Solrj是Solr搜索服务器的一个比较基础的客户端工具，可以非常方便地与Solr搜索服务器进行交互。最基本的功能就是管理Solr索引，包括添加、更新、删除和查询等。对于一些比较基础的应用，用Solj基本够用，而且你可以非常容易地通过使用Solrj的API实现与Solr搜索服务器进行交互，实现对Solr的基本管理功能。如果你的应用比较复杂，可以扩展Solrj来满足需要。

           使用 SolrJ操作索引库：

    ?
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64
    65
    66
    67
    68
    69
    70
    71
    72
    73
    74
    75
    76
    77
    78
    79
    80
    81
    82
    83
    84
    85
    86
    87
    88
    89
    90
    91
    92
    93
    94
    95
    96
    97
    98
    99
    100
    101
    102
    103
    104
    105
    106
    107
    108
    109
    110
    111
    112
    113
    114
    115
    116
    117
    118
    119
    120
    121
    122
    123
    124
    125
    126
    127
    128
    129
    130
    131
    132
    133
    134
    135
    136
    137
    138
    139
    140
    141
    142
    143
    144
    145
    146
    147
    148
    149
    150
    151
    152
    153
    154
    155
    156
    157
    158
    159
    160
    161
    162
    163
    164
    165
    166
    167
    168
    169
    170
    171
    172
    173
    174
    175
    176
    177
    178
    179
    180
    181
    182
    183
    184
    185
    186
    187
    188
    189
    190
    191
    192
    193
    194
    195
    196
    197
    198
    199
    200
    201
    202
    203
    204
    205
    206
    207
    208
    209
    210
    211
    212
    213
    214
    215
    216
    217
    218
    219
    220
    221
    222
    223
    224
    225
    226
    227
    228
    229
    230
    231
    232
    233
    234
    235
    236
    237
    238
    239
    240
    241
    242
    243
    244
    245
    246
    247
    248
    249
    250
    251
    252
    253
    254
    255
    256
    257
    258
    259
    260
    261
    262
    263
    264
    265
    266
    267
    268
    269
    270
    271
    272
    273
    274
    275
    276
    277
    278
    279
    280
    281
    package com.hcm.solr.test;
     
    import java.io.IOException;
    import java.util.ArrayList;
    import java.util.Iterator;
    import java.util.List;
    import java.util.Map;
     
    import org.apache.commons.logging.Log;
    import org.apache.commons.logging.LogFactory;
    import org.apache.solr.client.solrj.SolrQuery;
    import org.apache.solr.client.solrj.SolrServerException;
    import org.apache.solr.client.solrj.impl.HttpSolrServer;
    import org.apache.solr.client.solrj.response.QueryResponse;
    import org.apache.solr.client.solrj.response.UpdateResponse;
    import org.apache.solr.common.SolrDocument;
    import org.apache.solr.common.SolrDocumentList;
    import org.apache.solr.common.SolrInputDocument;
    import org.apache.solr.common.params.ModifiableSolrParams;
    import org.junit.Before;
    import org.junit.Test;
     
    import com.hcm.solr.entity.Message;
     
    public class SolrTest {
     
        private static Log logger = LogFactory.getLog(SolrTest.class);
     
        private static final String URL = "http://127.0.0.1:8086/solr";
     
        private HttpSolrServer server = null;
     
        @Before
        public void init() {
            // 创建 server
            server = new HttpSolrServer(URL);
        }
     
        /**
         * 添加文档
         */
        @Test
        public void addDoc() {
     
            SolrInputDocument doc = new SolrInputDocument();
     
            doc.addField("id", "11");
            doc.addField("title", "this is my document !!");
     
            try {
     
                UpdateResponse response = server.add(doc);
                // 提交
                server.commit();
     
                logger.info("########## Query Time :" + response.getQTime());
                logger.info("########## Elapsed Time :" + response.getElapsedTime());
                logger.info("########## Status :" + response.getStatus());
     
            } catch (SolrServerException | IOException e) {
                logger.error("", e);
            }
        }
     
        /**
         * 添加多个文档
         */
        @Test
        public void addDocs() {
     
            String[] titles = new String[] { "aaaaaaa", "bbbbbbb", "ccccccc", "dddddd", "eeeeee" };
     
            List<SolrInputDocument> docs = new ArrayList<SolrInputDocument>();
     
            int i = 0;
            for (String str : titles) {
                SolrInputDocument doc = new SolrInputDocument();
                doc.addField("id", i++);
                doc.addField("title", str);
                docs.add(doc);
            }
     
            try {
     
                UpdateResponse response = server.add(docs);
                server.commit();
     
                logger.info("########## Query Time :" + response.getQTime());
                logger.info("########## Elapsed Time :" + response.getElapsedTime());
                logger.info("########## Status :" + response.getStatus());
     
            } catch (SolrServerException | IOException e) {
                logger.error("", e);
            }
        }
     
        /**
         * 添加一个Entity到索引库
         */
        @Test
        public void addBean() {
     
            Message msg = new Message("1001", "What is Fluentd?", new String[] { "Fluentd is an open source data collector for unified logging layer",
                    "Fluentd allows you to unify data collection and consumption for a better use and understanding of data.",
                    "Fluentd decouples data sources from backend systems by providing a unified logging layer in between.",
                    "Fluentd proves you can achieve programmer happiness and performance at the same time. A great example of Ruby beyond the Web.",
                    "Fluentd to differentiate their products with better use of data." });
     
            try {
     
                UpdateResponse response = server.addBean(msg);
                server.commit();
     
                logger.info("########## Query Time :" + response.getQTime());
                logger.info("########## Elapsed Time :" + response.getElapsedTime());
                logger.info("########## Status :" + response.getStatus());
     
            } catch (SolrServerException | IOException e) {
                logger.error("", e);
            }
        }
     
        /**
         * 添加多个Entity到索引库
         */
        @Test
        public void addBeans() {
     
            List<Message> msgs = new ArrayList<Message>();
     
            Message msg = new Message("1001", "What is Fluentd?", new String[] { "Fluentd is an open source data collector for unified logging layer",
                    "Fluentd allows you to unify data collection and consumption for a better use and understanding of data.",
                    "Fluentd decouples data sources from backend systems by providing a unified logging layer in between.",
                    "Fluentd proves you can achieve programmer happiness and performance at the same time. A great example of Ruby beyond the Web.",
                    "Fluentd to differentiate their products with better use of data." });
     
            Message msg2 = new Message("1002", "What is Fluentd?", new String[] { "Fluentd is an open source data collector for unified logging layer",
                    "Fluentd allows you to unify data collection and consumption for a better use and understanding of data.",
                    "Fluentd decouples data sources from backend systems by providing a unified logging layer in between.",
                    "Fluentd proves you can achieve programmer happiness and performance at the same time. A great example of Ruby beyond the Web.",
                    "Fluentd to differentiate their products with better use of data." });
     
            msgs.add(msg);
            msgs.add(msg2);
     
            try {
     
                UpdateResponse response = server.addBeans(msgs);
                server.commit();
     
                logger.info("########## Query Time :" + response.getQTime());
                logger.info("########## Elapsed Time :" + response.getElapsedTime());
                logger.info("########## Status :" + response.getStatus());
     
            } catch (SolrServerException | IOException e) {
                logger.error("", e);
            }
        }
     
        /**
         * 删除索引
         */
        @Test
        public void deleteDoc() {
            try {
                server.deleteById("0");
                server.commit();
            } catch (SolrServerException | IOException e) {
                logger.error("", e);
            }
        }
         
        /**
         * 更新索引<br>
         * solr索引库不同于数据库，没有更新的功能。如果想更新，先通过id删除对应的文档，再添加新的文档。
         */
        @Test
        public void updateDoc() {
            // ... ...
        }
     
        /**
         * 查询
         */
        @Test
        public void testQuery() {
            String queryStr = "*:*";
            SolrQuery params = new SolrQuery(queryStr);
            params.set("rows", 10);
            try {
                QueryResponse response = server.query(params);
                SolrDocumentList list = response.getResults();
                logger.info("########### 总共 ： " + list.getNumFound() + "条记录");
                for (SolrDocument doc : list) {
                    logger.info("######### id : " + doc.get("id") + "  title : " + doc.get("title"));
                }
            } catch (SolrServerException e) {
                logger.error("", e);
            }
        }
     
        /**
         * 简单查询(分页)
         */
        @Test
        public void querySimple() {
            ModifiableSolrParams params = new ModifiableSolrParams();
            params.set("q", "this my");
            params.set("q.op", "and");
            params.set("start", 0);
            params.set("rows", 5);
            params.set("fl", "*,score");
            try {
                QueryResponse response = server.query(params);
                SolrDocumentList list = response.getResults();
                logger.info("########### 总共 ： " + list.getNumFound() + "条记录");
                for (SolrDocument doc : list) {
                    logger.info("######### id : " + doc.get("id") + "  title : " + doc.get("title"));
                }
            } catch (SolrServerException e) {
                logger.error("", e);
            }
        }
     
        /**
         * 查询(分页,高亮)
         */
        @Test
        public void queryCase() {
            String queryStr = "title:this";
            SolrQuery params = new SolrQuery(queryStr);
            params.set("start", 0);
            params.set("rows", 5);
     
            // 启用高亮组件, 设置高亮
            params.setHighlight(true)                          
                .addHighlightField("title")                    
                .setHighlightSimplePre("<span class="red">")
                .setHighlightSimplePost("</span>")
                .setHighlightSnippets(2)
                .setHighlightFragsize(1000)
                .setStart(0)
                .setRows(10)
                .set("hl.useFastVectorHighlighter", "true")
                .set("hl.fragsize", "200");
     
            try {
                QueryResponse response = server.query(params);
                SolrDocumentList list = response.getResults();
                logger.info("########### 总共 ： " + list.getNumFound() + "条记录");
                for (SolrDocument doc : list) {
                    logger.info("######### id : " + doc.get("id") + "  title : " + doc.get("title"));
                }
     
                Map<String, Map<String, List<String>>> map = response.getHighlighting();
                Iterator<String> iterator = map.keySet().iterator();
     
                while (iterator.hasNext()) {
                    String key = iterator.next();
                    Map<String, List<String>> values = map.get(key);
                    logger.info("############################################################");
                    logger.info("############ id : " + key);
     
                    for (Map.Entry<String, List<String>> entry : values.entrySet()) {
                        String subKey = entry.getKey();
                        List<String> subValues = entry.getValue();
     
                        logger.info("############ subKey : " + subKey);
                        for (String str : subValues) {
                            logger.info("############ subValues : " + str);
                        }
                    }
                     
                }
                 
            } catch (SolrServerException e) {
                logger.error("", e);
            }
        }
     
    }

    POJO：

    ?
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    package com.hcm.solr.entity;
     
    import java.io.Serializable;
     
    import org.apache.solr.client.solrj.beans.Field;
     
    public class Message implements Serializable {
     
        /**
         *
         */
        private static final long serialVersionUID = 1L;
     
        private String id;
        private String title;
        private String[] content;
     
        public Message() {
            super();
        }
     
        public Message(String id, String title, String[] content) {
            super();
            this.id = id;
            this.title = title;
            this.content = content;
        }
     
        public String getId() {
            return id;
        }
     
        @Field("id")
        public void setId(String id) {
            this.id = id;
        }
     
        public String getTitle() {
            return title;
        }
     
        @Field("title")
        public void setTitle(String title) {
            this.title = title;
        }
     
        public String[] getContent() {
            return content;
        }
     
        @Field("content")
        public void setContent(String[] content) {
            this.content = content;
        }
     
    }

     
  • 相关阅读:
    马走日
    扩号匹配问题
    八皇后
    流感传染
    迷宫
    棋盘问题
    JAVA-初步认识-第二章-字符类型的运算续
    JAVA-初步认识-第二章-算术运算符1知识点整理
    JAVA-初步认识-第二章-算术运算符1
    JAVA-初步认识-第二章-类型运算细节
  • 原文地址：https://www.cnblogs.com/huajiezh/p/5399710.html
Copyright © 2011-2022 走看看