1 package org.lucene.index;
2
3 import java.io.File;
4 import java.io.IOException;
5
6 import org.apache.lucene.analysis.standard.StandardAnalyzer;
7 import org.apache.lucene.document.Document;
8 import org.apache.lucene.document.Field;
9 import org.apache.lucene.index.CorruptIndexException;
10 import org.apache.lucene.index.IndexReader;
11 import org.apache.lucene.index.IndexWriter;
12 import org.apache.lucene.index.IndexWriterConfig;
13 import org.apache.lucene.index.Term;
14 import org.apache.lucene.store.Directory;
15 import org.apache.lucene.store.FSDirectory;
16 import org.apache.lucene.store.LockObtainFailedException;
17 import org.apache.lucene.util.Version;
18
19 public class IndexUtil {
20 String[] ids = { "aa", "bb", "cc", "dd", "ee", "ff", "gg" };
21 String[] emails = { "aaa@lucenes.com", "bbb@lucenes.com",
22 "ccc@lucenes.com", "ddd@lucenes.com", "eee@lucenes.com",
23 "fff@lucenes.com", "ggg@lucenes.com" };
24 String[] contents = { "aaaaaaaaaaaaaa", "bbbbbbbbbbbbbb",
25 "ccccccccccccccc", "dddddddddddddd", "eeeeeeeeeeeeee",
26 "fffffffffffffff", "gggggggggggggg" };
27 String[] names = { "zhangsan", "lisi", "wangwu", "zhaoliu", "tianqi",
28 "zhaoba", "chenjiu" };
29 Integer[] attachs = { 1, 2, 5, 4, 6, 2, 3 };
30
31 Directory directory = null;
32
33 public IndexUtil() {
34 try {
35 directory = FSDirectory.open(new File(
36 "E:/luceneworkspace/Lucene2/path"));
37 } catch (IOException e) {
38 e.printStackTrace();
39 }
40 }
41
42 /**
43 * 创建索引
44 */
45 public void index() {
46 IndexWriter indexWriter = null;
47 try {
48 indexWriter = new IndexWriter(directory, new IndexWriterConfig(
49 Version.LUCENE_35, new StandardAnalyzer(Version.LUCENE_35)));
50 indexWriter.deleteAll();
51 Document document = null;
52 for (int i = 0; i < ids.length; i++) {
53 document = new Document();
54 document.add(new Field("id", ids[i], Field.Store.YES,
55 Field.Index.NOT_ANALYZED_NO_NORMS));
56 document.add(new Field("email", emails[i], Field.Store.YES,
57 Field.Index.NOT_ANALYZED));
58 document.add(new Field("content", contents[i], Field.Store.NO,
59 Field.Index.ANALYZED));
60 document.add(new Field("name", names[i], Field.Store.YES,
61 Field.Index.NOT_ANALYZED));
62 indexWriter.addDocument(document);
63 }
64 } catch (CorruptIndexException e) {
65 e.printStackTrace();
66 } catch (LockObtainFailedException e) {
67 e.printStackTrace();
68 } catch (IOException e) {
69 e.printStackTrace();
70 } finally {
71 try {
72 if (indexWriter != null)
73 indexWriter.close();
74 } catch (CorruptIndexException e) {
75 e.printStackTrace();
76 } catch (IOException e) {
77 e.printStackTrace();
78 }
79 }
80 }
81
82 /**
83 * 删除索引
84 */
85 public void delete() {
86 IndexWriter indexWriter = null;
87 try {
88 indexWriter = new IndexWriter(directory, new IndexWriterConfig(
89 Version.LUCENE_35, new StandardAnalyzer(Version.LUCENE_35)));
90 indexWriter.deleteDocuments(new Term("id", "aa"));
91 } catch (CorruptIndexException e) {
92 e.printStackTrace();
93 } catch (LockObtainFailedException e) {
94 e.printStackTrace();
95 } catch (IOException e) {
96 e.printStackTrace();
97 } finally {
98 try {
99 if (indexWriter != null)
100 indexWriter.close();
101 } catch (CorruptIndexException e) {
102 e.printStackTrace();
103 } catch (IOException e) {
104 e.printStackTrace();
105 }
106 }
107 }
108
109 /**
110 * 恢复索引
111 */
112 public void undelete() {
113 IndexReader indexReader = null;
114 try {
115 indexReader = IndexReader.open(directory, false);
116 indexReader.undeleteAll();
117 } catch (CorruptIndexException e) {
118 e.printStackTrace();
119 } catch (LockObtainFailedException e) {
120 e.printStackTrace();
121 } catch (IOException e) {
122 e.printStackTrace();
123 } finally {
124 try {
125 if (indexReader != null)
126 indexReader.close();
127 } catch (IOException e) {
128 e.printStackTrace();
129 }
130 }
131 }
132
133 /**
134 * 清空回收站索引
135 */
136 public void clear(){
137 IndexWriter indexWriter = null;
138 try {
139 indexWriter = new IndexWriter(directory, new IndexWriterConfig(
140 Version.LUCENE_35, new StandardAnalyzer(Version.LUCENE_35)));
141 indexWriter.forceMergeDeletes();
142 } catch (CorruptIndexException e) {
143 e.printStackTrace();
144 } catch (LockObtainFailedException e) {
145 e.printStackTrace();
146 } catch (IOException e) {
147 e.printStackTrace();
148 } finally {
149 try {
150 if (indexWriter != null)
151 indexWriter.close();
152 } catch (CorruptIndexException e) {
153 e.printStackTrace();
154 } catch (IOException e) {
155 e.printStackTrace();
156 }
157 }
158 }
159
160 /**
161 * 更新索引
162 */
163 public void update(){
164 IndexWriter indexWriter = null;
165 try {
166 indexWriter = new IndexWriter(directory, new IndexWriterConfig(
167 Version.LUCENE_35, new StandardAnalyzer(Version.LUCENE_35)));
168 Document doc=new Document();
169 doc.add(new Field("id", "hh", Field.Store.YES,
170 Field.Index.NOT_ANALYZED_NO_NORMS));
171 doc.add(new Field("email", emails[2], Field.Store.YES,
172 Field.Index.NOT_ANALYZED));
173 doc.add(new Field("content", contents[3], Field.Store.NO,
174 Field.Index.ANALYZED));
175 doc.add(new Field("name", names[4], Field.Store.YES,
176 Field.Index.NOT_ANALYZED));
177 indexWriter.updateDocument(new Term("id","aa"), doc);
178 } catch (CorruptIndexException e) {
179 e.printStackTrace();
180 } catch (LockObtainFailedException e) {
181 e.printStackTrace();
182 } catch (IOException e) {
183 e.printStackTrace();
184 } finally {
185 try {
186 if (indexWriter != null)
187 indexWriter.close();
188 } catch (CorruptIndexException e) {
189 e.printStackTrace();
190 } catch (IOException e) {
191 e.printStackTrace();
192 }
193 }
194 }
195
196 public void query() {
197 try {
198 IndexReader indexReader = IndexReader.open(directory);
199 System.out.println("maxDoc:" + indexReader.maxDoc());
200 System.out.println("numDocs:" + indexReader.numDocs());
201 System.out.println("numDeleteDocs:"+indexReader.numDeletedDocs());
202 } catch (CorruptIndexException e) {
203 e.printStackTrace();
204 } catch (IOException e) {
205 e.printStackTrace();
206 }
207
208 }
209 }
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