1 import java.io.BufferedInputStream;
2 import java.io.File;
3 import java.io.FileInputStream;
4 import java.io.FileNotFoundException;
5 import java.io.IOException;
6 import java.text.DecimalFormat;
7 import java.text.SimpleDateFormat;
8 import java.util.ArrayList;
9 import java.util.Arrays;
10 import java.util.Date;
11 import java.util.LinkedHashMap;
12 import java.util.List;
13 import java.util.Map;
14 import java.util.Map.Entry;
15
16 import org.apache.poi.hssf.usermodel.HSSFCell;
17 import org.apache.poi.hssf.usermodel.HSSFDateUtil;
18 import org.apache.poi.xssf.usermodel.XSSFCell;
19 import org.apache.poi.xssf.usermodel.XSSFRow;
20 import org.apache.poi.xssf.usermodel.XSSFSheet;
21 import org.apache.poi.xssf.usermodel.XSSFWorkbook;
22
23 public class rex {
24
25 public static void main(String[] args) throws Exception {
26 Map<Object, Object> map = new LinkedHashMap<Object, Object>();
27 String s = "C:\\Users\\Lenovo\\Desktop\\文档\\test.xls";
28 File file = new File(s);
29 String[][] result = getData(file, 1);
30 int rowLength = result.length;
31 System.out.println("..." + rowLength);
32 for (int i = 0; i < rowLength; i++) {
33 map.put(result[i][0], new String[] { result[i][1], result[i][2] });
34 System.out.println(result[i][0] + result[i][1] + result[i][2]);
35 }
36 // net.sf.json.JSONObject jo = net.sf.json.JSONObject.fromObject(map);
37 // Map<Object, Object> m = jo;
38 // for (Entry<Object, Object> mp : m.entrySet()) {
39 // System.out.println(mp.getKey() + ":" + mp.getValue().toString());
40 // }
41
42 }
43
44 /**
45 *
46 * 读取Excel的内容，第一维数组存储的是一行中格列的值，二维数组存储的是多少个行
47 *
48 * @param file 读取数据的源Excel
49 *
50 * @param ignoreRows 读取数据忽略的行数，比喻行头不需要读入 忽略的行数为1
51 *
52 * @return 读出的Excel中数据的内容
53 *
54 * @throws FileNotFoundException
55 *
56 * @throws IOException
57 *
58 */
59
60 public static String[][] getData(File file, int ignoreRows)
61
62 throws FileNotFoundException, IOException {
63
64 List<String[]> result = new ArrayList<String[]>();
65 int rowSize = 0;
66 BufferedInputStream in = new BufferedInputStream(new FileInputStream(file));
67 // POIFSFileSystem fs = new POIFSFileSystem(in);
68 XSSFWorkbook wb = new XSSFWorkbook(in);
69 XSSFCell cell = null;
70 for (int sheetIndex = 0; sheetIndex < wb.getNumberOfSheets(); sheetIndex++) {
71 XSSFSheet st = wb.getSheetAt(sheetIndex);
72 // 第一行为标题，不取
73 for (int rowIndex = ignoreRows; rowIndex <= st.getLastRowNum(); rowIndex++) {
74 XSSFRow row = st.getRow(rowIndex);
75 if (row == null) {
76 continue;
77 }
78
79 int tempRowSize = row.getLastCellNum() + 1;
80 if (tempRowSize > rowSize) {
81 rowSize = tempRowSize;
82 }
83
84 String[] values = new String[rowSize];
85 Arrays.fill(values, "");
86 boolean hasValue = false;
87 for (short columnIndex = 0; columnIndex <= row.getLastCellNum(); columnIndex++) {
88 String value = "";
89 cell = row.getCell(columnIndex);
90 if (cell != null) {
91 // 注意：一定要设成这个，否则可能会出现乱码
92 // cell.setEncoding(HSSFCell.ENCODING_UTF_16);
93 switch (cell.getCellType()) {
94 case HSSFCell.CELL_TYPE_STRING:
95 value = cell.getStringCellValue();
96 break;
97 case HSSFCell.CELL_TYPE_NUMERIC:
98 if (HSSFDateUtil.isCellDateFormatted(cell)) {
99 Date date = cell.getDateCellValue();
100 if (date != null) {
101 value = new SimpleDateFormat("yyyy-MM-dd")
102 .format(date);
103 } else {
104 value = "";
105 }
106 } else {
107 value = new DecimalFormat("0").format(cell.getNumericCellValue());
108 }
109 break;
110 case HSSFCell.CELL_TYPE_FORMULA:
111 // 导入时如果为公式生成的数据则无值
112 if (!cell.getStringCellValue().equals("")) {
113 value = cell.getStringCellValue();
114 } else {
115 value = cell.getNumericCellValue() + "";
116 }
117 break;
118 case HSSFCell.CELL_TYPE_BLANK:
119 break;
120 case HSSFCell.CELL_TYPE_ERROR:
121 value = "";
122 break;
123 case HSSFCell.CELL_TYPE_BOOLEAN:
124 value = (cell.getBooleanCellValue() == true ? "Y" : "N");
125 break;
126 default:
127 value = "";
128 }
129 }
130
131 if (columnIndex == 0 && value.trim().equals("")) {
132 break;
133 }
134
135 values[columnIndex] = rightTrim(value);
136 hasValue = true;
137 }
138
139 if (hasValue) {
140 result.add(values);
141 }
142
143 }
144
145 }
146
147 in.close();
148 String[][] returnArray = new String[result.size()][rowSize];
149 for (int i = 0; i < returnArray.length; i++) {
150 returnArray[i] = (String[]) result.get(i);
151 }
152 return returnArray;
153
154 }
155
156 /**
157 *
158 * 去掉字符串右边的空格
159 *
160 * @param str 要处理的字符串
161 *
162 * @return 处理后的字符串
163 *
164 */
165
166 public static String rightTrim(String str) {
167
168 if (str == null) {
169 return "";
170 }
171
172 int length = str.length();
173 for (int i = length - 1; i >= 0; i--) {
174 if (str.charAt(i) != 0x20) {
175 break;
176 }
177 length--;
178 }
179 return str.substring(0, length);
180 }
181
182 }
