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XML 코드를 기반으로하는 야구 통계를 시각화하는 웹 사이트를 만들려고합니다. 그 HTML 구문 분석에 대한 내 자바 클래스 여기왜 여기에 반환 null입니까?
<?xml version = "1.0" encoding = "utf-8"?>
<phillies>
<player>
<name>Ryan Howard</name>
<position>First Baseman</position>
<bats>Left</bats>
<throws>Left</throws>
<year2004>
<games>18</games>
<pa>42</pa>
<ab>39</ab>
<hits>11</hits>
<runs>9</runs>
<doubles>5</doubles>
<triples>0</triples>
<hr>2</hr>
<rbi>5</rbi>
<sb>0</sb>
<cs>0</cs>
<bb>2</bb>
<so>13</so>
<ba>.282</ba>
</year2004>
<year2005>
<games>88</games>
<pa>348</pa>
<ab>312</ab>
<hits>90</hits>
<runs>52</runs>
<doubles>17</doubles>
<triples>2</triples>
<hr>22</hr>
<rbi>63</rbi>
<sb>0</sb>
<cs>1</cs>
<bb>33</bb>
<so>100</so>
<ba>.288</ba>
</year2005>
<year2006>
<games>159</games>
<pa>704</pa>
<ab>581</ab>
<hits>182</hits>
<runs>104</runs>
<doubles>25</doubles>
<triples>1</triples>
<hr>58</hr>
<rbi>149</rbi>
<sb>0</sb>
<cs>0</cs>
<bb>108</bb>
<so>181</so>
<ba>.313</ba>
</year2006>
<year2007>
<games>144</games>
<pa>648</pa>
<ab>529</ab>
<hits>142</hits>
<runs>94</runs>
<doubles>26</doubles>
<triples>0</triples>
<hr>47</hr>
<rbi>136</rbi>
<sb>1</sb>
<cs>0</cs>
<bb>107</bb>
<so>199</so>
<ba>.268</ba>
</year2007>
<year2008>
<games>162</games>
<pa>700</pa>
<ab>610</ab>
<hits>153</hits>
<runs>105</runs>
<doubles>26</doubles>
<triples>4</triples>
<hr>48</hr>
<rbi>146</rbi>
<sb>1</sb>
<cs>1</cs>
<bb>81</bb>
<so>199</so>
<ba>.251</ba>
</year2008>
<year2009>
<games>160</games>
<pa>703</pa>
<ab>616</ab>
<hits>172</hits>
<runs>105</runs>
<doubles>37</doubles>
<triples>4</triples>
<hr>45</hr>
<rbi>141</rbi>
<sb>8</sb>
<cs>1</cs>
<bb>75</bb>
<so>186</so>
<ba>.279</ba>
</year2009>
<year2010>
<games>143</games>
<pa>620</pa>
<ab>550</ab>
<hits>152</hits>
<runs>87</runs>
<doubles>23</doubles>
<triples>5</triples>
<hr>31</hr>
<rbi>108</rbi>
<sb>1</sb>
<cs>1</cs>
<bb>59</bb>
<so>157</so>
<ba>.276</ba>
</year2010>
<year2011>
<games>152</games>
<pa>644</pa>
<ab>557</ab>
<hits>141</hits>
<runs>81</runs>
<doubles>30</doubles>
<triples>1</triples>
<hr>33</hr>
<rbi>116</rbi>
<sb>1</sb>
<cs>0</cs>
<bb>75</bb>
<so>172</so>
<ba>.253</ba>
</year2011>
<year2012>
<games>71</games>
<pa>292</pa>
<ab>260</ab>
<hits>57</hits>
<runs>28</runs>
<doubles>11</doubles>
<triples>0</triples>
<hr>14</hr>
<rbi>56</rbi>
<sb>0</sb>
<cs>0</cs>
<bb>25</bb>
<so>99</so>
<ba>.219</ba>
</year2012>
<year2013>
<games>80</games>
<pa>317</pa>
<ab>286</ab>
<hits>76</hits>
<runs>34</runs>
<doubles>20</doubles>
<triples>2</triples>
<hr>11</hr>
<rbi>43</rbi>
<sb>0</sb>
<cs>0</cs>
<bb>23</bb>
<so>95</so>
<ba>.266</ba>
</year2013>
<year2014>
<games>153</games>
<pa>648</pa>
<ab>569</ab>
<hits>127</hits>
<runs>65</runs>
<doubles>18</doubles>
<triples>1</triples>
<hr>23</hr>
<rbi>95</rbi>
<sb>0</sb>
<cs>0</cs>
<bb>67</bb>
<so>190</so>
<ba>.223</ba>
</year2014>
<year2015>
<games>129</games>
<pa>503</pa>
<ab>467</ab>
<hits>107</hits>
<runs>53</runs>
<doubles>29</doubles>
<triples>1</triples>
<hr>23</hr>
<rbi>77</rbi>
<sb>0</sb>
<cs>0</cs>
<bb>27</bb>
<so>138</so>
<ba>.229</ba>
</year2015>
<year2016>
<games>112</games>
<pa>362</pa>
<ab>331</ab>
<hits>65</hits>
<runs>35</runs>
<doubles>10</doubles>
<triples>0</triples>
<hr>25</hr>
<rbi>59</rbi>
<sb>0</sb>
<cs>1</cs>
<bb>27</bb>
<so>138</so>
<ba>.196</ba>
</year2016>
</player>
<player>
<name>Maikel Franco</name>
<position>Third Baseman</position>
<bats>Right</bats>
<throws>Right</throws>
<year2014>
<games>16</games>
<pa>58</pa>
<ab>56</ab>
<runs>5</runs>
<hits>10</hits>
<doubles>2</doubles>
<triples>0</triples>
<hr>0</hr>
<rbi>5</rbi>
<sb>0</sb>
<cs>0</cs>
<bb>1</bb>
<so>13</so>
<ba>.179</ba>
</year2014>
<year2015>
<games>80</games>
<pa>335</pa>
<ab>304</ab>
<runs>45</runs>
<hits>85</hits>
<doubles>22</doubles>
<triples>1</triples>
<hr>14</hr>
<rbi>50</rbi>
<sb>1</sb>
<cs>0</cs>
<bb>26</bb>
<so>52</so>
<ba>.280</ba>
</year2015>
<year2016>
<games>152</games>
<pa>630</pa>
<ab>581</ab>
<runs>67</runs>
<hits>148</hits>
<doubles>23</doubles>
<triples>1</triples>
<hr>25</hr>
<rbi>88</rbi>
<sb>1</sb>
<cs>1</cs>
<bb>40</bb>
<so>106</so>
<ba>.255</ba>
</year2016>
</player>
<player>
<name>Cameron Rupp</name>
<position>Catcher</position>
<bats>Right</bats>
<throws>Right</throws>
<year2013>
<games>4</games>
<pa>14</pa>
<ab>13</ab>
<runs>1</runs>
<hits>4</hits>
<doubles>1</doubles>
<triples>0</triples>
<hr>0</hr>
<rbi>2</rbi>
<sb>0</sb>
<cs>0</cs>
<bb>1</bb>
<so>4</so>
<ba>.308</ba>
</year2013>
<year2014>
<games>18</games>
<pa>64</pa>
<ab>60</ab>
<runs>4</runs>
<hits>11</hits>
<doubles>4</doubles>
<triples>0</triples>
<hr>0</hr>
<rbi>6</rbi>
<sb>0</sb>
<cs>0</cs>
<bb>4</bb>
<so>20</so>
<ba>.183</ba>
</year2014>
<year2015>
<games>81</games>
<pa>299</pa>
<ab>270</ab>
<runs>24</runs>
<hits>63</hits>
<doubles>9</doubles>
<triples>1</triples>
<hr>9</hr>
<rbi>28</rbi>
<sb>0</sb>
<cs>1</cs>
<bb>24</bb>
<so>71</so>
<ba>.233</ba>
</year2015>
<year2016>
<games>105</games>
<pa>419</pa>
<ab>389</ab>
<runs>36</runs>
<hits>98</hits>
<doubles>26</doubles>
<triples>1</triples>
<hr>16</hr>
<rbi>54</rbi>
<sb>1</sb>
<cs>0</cs>
<bb>24</bb>
<so>114</so>
<ba>.252</ba>
</year2016>
</player>
<player>
<name>Tommy Joseph</name>
<position>First Baseman</position>
<bats>Right</bats>
<throws>Right</throws>
<year2016>
<games>107</games>
<pa>347</pa>
<ab>315</ab>
<runs>47</runs>
<hits>81</hits>
<doubles>15</doubles>
<triples>0</triples>
<hr>21</hr>
<rbi>47</rbi>
<sb>1</sb>
<cs>1</cs>
<bb>22</bb>
<so>75</so>
<ba>.257</ba>
</year2016>
</player>
<player>
<name>Cesar Hernandez</name>
<position>Second Baseman</position>
<bats>Switch</bats>
<throws>Right</throws>
<year2013>
<games>34</games>
<pa>131</pa>
<ab>121</ab>
<runs>17</runs>
<hits>35</hits>
<doubles>5</doubles>
<triples>0</triples>
<hr>0</hr>
<rbi>10</rbi>
<sb>0</sb>
<cs>3</cs>
<bb>9</bb>
<so>26</so>
<ba>.289</ba>
</year2013>
<year2014>
<games>66</games>
<pa>125</pa>
<ab>114</ab>
<runs>13</runs>
<hits>27</hits>
<doubles>2</doubles>
<triples>0</triples>
<hr>1</hr>
<rbi>4</rbi>
<sb>1</sb>
<cs>1</cs>
<bb>9</bb>
<so>33</so>
<ba>.237</ba>
</year2014>
<year2015>
<games>127</games>
<pa>452</pa>
<ab>405</ab>
<runs>57</runs>
<hits>110</hits>
<doubles>20</doubles>
<triples>4</triples>
<hr>1</hr>
<rbi>35</rbi>
<sb>19</sb>
<cs>5</cs>
<bb>40</bb>
<so>86</so>
<ba>.274</ba>
</year2015>
<year2016>
<games>155</games>
<pa>622</pa>
<ab>547</ab>
<runs>67</runs>
<hits>161</hits>
<doubles>14</doubles>
<triples>11</triples>
<hr>6</hr>
<rbi>39</rbi>
<sb>17</sb>
<cs>13</cs>
<bb>66</bb>
<so>116</so>
<ba>.294</ba>
</year2016>
</player>
<player>
<name>Freddy Galvis</name>
<position>Shortstop</position>
<bats>Switch</bats>
<throws>Right</throws>
<year2012>
<games>58</games>
<pa>200</pa>
<ab>190</ab>
<runs>14</runs>
<hits>43</hits>
<doubles>15</doubles>
<triples>1</triples>
<hr>3</hr>
<rbi>24</rbi>
<sb>0</sb>
<cs>0</cs>
<bb>7</bb>
<so>29</so>
<ba>.229</ba>
</year2012>
<year2013>
<games>70</games>
<pa>222</pa>
<ab>205</ab>
<runs>13</runs>
<hits>48</hits>
<doubles>5</doubles>
<triples>4</triples>
<hr>6</hr>
<rbi>19</rbi>
<sb>1</sb>
<cs>0</cs>
<bb>13</bb>
<so>45</so>
<ba>.234</ba>
</year2013>
<year2014>
<games>43</games>
<pa>128</pa>
<ab>119</ab>
<runs>14</runs>
<hits>21</hits>
<doubles>3</doubles>
<triples>1</triples>
<hr>4</hr>
<rbi>12</rbi>
<sb>1</sb>
<cs>0</cs>
<bb>8</bb>
<so>30</so>
<ba>.176</ba>
</year2014>
<year2015>
<games>151</games>
<pa>603</pa>
<ab>559</ab>
<runs>63></runs>
<hits>147</hits>
<doubles>14</doubles>
<triples>5</triples>
<hr>7</hr>
<rbi>50</rbi>
<sb>10</sb>
<cs>1</cs>
<bb>30</bb>
<so>103</so>
<ba>.241</ba>
</year2015>
<year2016>
<games>158</games>
<pa>624</pa>
<ab>584</ab>
<runs>61</runs>
<hits>141</hits>
<doubles>26</doubles>
<triples>3</triples>
<hr>20</hr>
<rbi>67</rbi>
<sb>17</sb>
<cs>6</cs>
<bb>25</bb>
<so>136</so>
<ba>.241</ba>
</year2016>
</player>
</phillies>
: 그리고 여기에 XML 코드 마지막으로
package com.grim.baseballvisualizer;
import java.io.File;
import java.io.IOException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
public class XMLParser {
public static NodeList parseXML(String file) {
File xmlFile = new File("howard.xml");
DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
try {
DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
Document document = documentBuilder.parse(xmlFile);
NodeList names = document.getElementsByTagName("name");
return names;
}
catch (ParserConfigurationException e) {
e.printStackTrace();
}
catch (SAXException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
, 나는 Xpath는 parseXml 함수를 호출하는 JSP 프로그램이 다음 난을 쓰고 싶어 나머지 코드는 실제로 데이터를 시각화합니다. 그러나, 내가 가지고있는 문제는 "names"를 반환하면 xml 파일에 "name"의 인스턴스가 여러 개 있지만 null이 반환됩니다.
스택 트레이스가 생성됩니까? 그런 출력이 나타날 로그 파일을 확인 했습니까? –
아무 것도하지 않는 것 같습니다. 그것은 단지 내 화면에 null을 말합니다. –
XML 파일은 어디에 두시겠습니까? JSP가 파서에 '파일'로 정확히 전달하는 것은 무엇입니까? –