Junit 跟XML解析实例
使用Junit Test 在AndroidManifest文件中添加如下申明：
然后新建一个类继承AndroidTestCase
public class PersonService {
public void sace(){
String string = "2014";
Integer integer = new Integer(2014);
}
public void sace2(){
String string = "2014";
Integer integer = new Integer(2014);
}
}public class PersonServiceTest extends AndroidTestCase{
private static final String TAG = "PersonServiceTest";
public void testSave() throws Throwable{
PersonService personService = new PersonService();
personService.sace();
}
public void testwanwan() throws Throwable{
PersonService personService = new PersonService();
personService.sace2();
}
里面的方法要以test开头，public修饰 还要抛出异常
如果报错，会跟踪到对应的报错信息。这里就不累赘，可以自行测试
XML解析主要有3个方法： SAX ， DOM ， Pull
Android内置推荐使用pull 的方法， DOM解析时要全部加载多内存，会耗较多内存， Android设备不推荐使用：
现在使用SAX 跟Pull分别解析下面的2个XML
hewence
24
zhangzhenlai
25
Pull方法:
private static final String TAG_PERSON = "person";
private static final String TAG_NAME = "name";
private static final String TAG_AGE = "age";
private static final String ATTR_ID = "id";
private static final String TAG = null;
private static Person person;
public static ArrayList getPerson(InputStream is){
Log.i(TAG , "getPerson = is" + is);
if (null == is){
return null;
}
ArrayList persons = null ;
XmlPullParser parser = Xml.newPullParser();
try {
parser.setInput(is, "utf-8");
int event = parser.getEventType();
while(event != XmlPullParser.END_DOCUMENT){
switch (event) {
case XmlPullParser.START_DOCUMENT:
persons = new ArrayList();
break;
case XmlPullParser.START_TAG:
String tagName = parser.getName();
if (TAG_PERSON.equals(tagName)){
person = new Person();
person.setId(Integer.parseInt(parser.getAttributeValue(0)));
}else if (TAG_NAME.equals(tagName)){
person.setName(parser.nextText());
}else if (TAG_AGE.equals(tagName)){
person.setAge(Integer.parseInt(parser.nextText()));
}
break;
case XmlPullParser.END_TAG:
tagName = parser.getName();
if (TAG_PERSON.equals(tagName)){
persons.add(person);
}
break;
default:
break;
}
event = parser.next();
}
} catch (XmlPullParserException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return persons;
}
private static final String TAG_APP = "app";
private static final String TAG_APPINFO = "appinfo";
private static final String TAG_DOWN_URL = "Down_URL";
private static final String TAG_VERSION = "version";
private static final String ATTR_VER = "ver";
// private static final String ATTR_ID = "id";
private static final String ATTR_APP_NAME = "APP_NAME";
private static final String ATTR_APP_VERSION = "APP_VERSION";
private static final String ATTR_ICON_LOCAL = "icon_local";
private static final String ATTR_PACK_NAME = "packname";
private static final String ATTR_APP_URL = "app_url";
public static List- getItems(InputStream is){
if (null == is){
return null;
}
List
- items = null ;
Item item = null;
XmlPullParser parser = Xml.newPullParser();
try {
parser.setInput(is, "utf-8");
int event = parser.getEventType();
while (event != XmlPullParser.END_DOCUMENT) {
switch (event) {
case XmlPullParser.START_DOCUMENT:
items = new ArrayList
- ();
break;
case XmlPullParser.START_TAG:
String tagName = parser.getName();
if (TAG_APP.equals(tagName)){
item = new Item();
}else if (TAG_APPINFO.equals(tagName)){
int length = parser.getAttributeCount();
for (int i = 0 ; i < length ; i++){
String attrName = parser.getAttributeName(i);
if (ATTR_ID.equals(attrName)){
item.setId(Integer.parseInt(parser.getAttributeValue(i)));
}else if (ATTR_APP_NAME.equals(attrName)){
item.setTitle(parser.getAttributeValue(i));
}else if (ATTR_APP_VERSION.equals(attrName)){
item.setVersion(parser.getAttributeValue(i));
}else if (ATTR_ICON_LOCAL.equals(attrName)){
item.setIcon_loacl(Boolean.parseBoolean(parser.getAttributeValue(i)));
}else if (ATTR_PACK_NAME.equals(attrName)){
item.setPackageName(parser.getAttributeValue(i));
}
}
}else if (TAG_DOWN_URL.equals(tagName)){
int length = parser.getAttributeCount();
for (int i = 0 ; i < length ; i++){
String attrName = parser.getAttributeName(i);
if (ATTR_APP_URL.equals(attrName)){
item.setAppUrl(parser.getAttributeValue(i));
}
}
}else if (TAG_VERSION.equals(tagName)){
int length = parser.getAttributeCount();
for (int i = 0 ; i < length ; i++){
String attrName = parser.getAttributeName(i);
if (ATTR_VER.equals(attrName)){
Log.i(TAG , " Version = " + parser.getAttributeValue(i));
}
}
}
break;
case XmlPullParser.END_TAG:
tagName = parser.getName();
if (TAG_APP.equals(tagName)){
items.add(item);
}
break;
default:
break;
}
event = parser.next();
}
} catch (XmlPullParserException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return items;
}
public class SaxForParse extends DefaultHandler{
private static final String TAG = "SaxForParse";
private static final String TAG_PERSON = "person";
private static final String TAG_NAME = "name";
private static final String TAG_AGE = "age";
private static final String ATTR_ID = "id";
private List persons ;
private Person person ;
private String perTag = "";
@Override
public void startDocument() throws SAXException {
Log.i(TAG , "startDocument == ");
persons = new ArrayList();
}
public List getPersons() {
return persons;
}
@Override
public void startElement(String uri, String localName, String qName, Attributes attributes)
throws SAXException {
Log.i(TAG , "startElement == " + "uri = " + uri + "localName = " + localName + " qName = " + qName );
if (TAG_PERSON.equals(localName)){
person = new Person();
int length = attributes.getLength();
for(int i = 0 ; i < length ; i++){
Log.i(TAG , "startElement == attributes name = " + attributes.getLocalName(i)
+ "values = " + attributes.getValue(i));
if (ATTR_ID.equalsIgnoreCase(attributes.getLocalName(i))){
person.setId(Integer.parseInt(attributes.getValue(i)));
}
}
}
perTag = localName;
}
@Override
public void endElement(String uri, String localName, String qName) throws SAXException {
Log.i(TAG , "endElement == " + "uri = " + uri
+ "localName = " + localName + " qName = " + qName );
if (TAG_PERSON.equals(localName)){
persons.add(person);
}
perTag = null;
}
@Override
public void characters(char[] ch, int start, int length) throws SAXException {
String data = new String(ch , start , length).trim();
if (TAG_NAME.equals(perTag)){
person.setName(data);
}else if (TAG_AGE.equals(perTag)){
person.setAge(Integer.parseInt(data));
}
}
@Override
public void endDocument() throws SAXException {
Log.i(TAG , "endDocument == ");
}
} public class SaxForParse2 extends DefaultHandler{
private static final String TAG = "SaxForParse";
private static final String TAG_APP = "app";
private static final String TAG_APPINFO = "appinfo";
private static final String TAG_DOWN_URL = "Down_URL";
private static final String TAG_VERSION = "version";
private static final String ATTR_VER = "ver";
private static final String ATTR_ID = "id";
private static final String ATTR_APP_NAME = "APP_NAME";
private static final String ATTR_APP_VERSION = "APP_VERSION";
private static final String ATTR_ICON_LOCAL = "icon_local";
private static final String ATTR_PACK_NAME = "packname";
private static final String ATTR_APP_URL = "app_url";
private List- items ;
private Item item ; // 当前item
public List
- getItems() {
return items;
}
@Override
public void startDocument() throws SAXException {
Log.i(TAG, "startDocument");
items = new ArrayList
- ();
}
@Override
public void endDocument() throws SAXException {
Log.i(TAG, "endDocument");
}
@Override
public void startElement(String uri, String localName, String qName, Attributes attributes)
throws SAXException {
if (TAG_APP.equals(localName)){
item = new Item();
}else if (TAG_APPINFO.equals(localName)){
int length = attributes.getLength();
for (int i = 0 ; i < length ; i++){
String attrName = attributes.getLocalName(i);
if (ATTR_ID.equals(attrName)){
item.setId(Integer.parseInt(attributes.getValue(i)));
}else if (ATTR_APP_NAME.equals(attrName)){
item.setTitle(attributes.getValue(i));
}else if (ATTR_APP_VERSION.equals(attrName)){
item.setVersion(attributes.getValue(i));
}else if (ATTR_ICON_LOCAL.equals(attrName)){
item.setIcon_loacl(Boolean.parseBoolean(attributes.getValue(i)));
}else if (ATTR_PACK_NAME.equals(attrName)){
item.setPackageName(attributes.getValue(i));
}
}
}else if (TAG_DOWN_URL.equals(localName)){
int length = attributes.getLength();
for (int i = 0 ; i < length ; i++){
String attrName = attributes.getLocalName(i);
if (ATTR_APP_URL.equals(attrName)){
item.setAppUrl(attributes.getValue(i));
}
}
}else if (TAG_VERSION.equals(localName)){
int length = attributes.getLength();
for (int i = 0 ; i < length ; i++){
String attrName = attributes.getLocalName(i);
if (ATTR_VER.equals(attrName)){
Log.i(TAG , " Version = " + attributes.getValue(i));
}
}
}
}
@Override
public void endElement(String uri, String localName, String qName) throws SAXException {
if (TAG_APP.equals(localName)){
items.add(item);
}
}
@Override
public void characters(char[] ch, int start, int length) throws SAXException {
}
}
使用Pull发方法被SAX的方法效果略高，Pull可能会引起交叉编译会报错（在源码编译的时候）
还可以使用pull来生成XML public static void createXml(List persons , OutputStream outputStream) throws Exception{
XmlSerializer serializer = Xml.newSerializer();
serializer.setOutput(outputStream, "utf-8");
serializer.startDocument("utf-8", true);
serializer.startTag(null, "persons");
for (Person person : persons){
serializer.startTag(null, "person");
serializer.attribute(null, "id", "" + person.getId());
serializer.startTag(null, "name");
serializer.text(person.getName());
serializer.endTag(null, "name");
serializer.startTag(null, "age");
serializer.text(""+ person.getAge());
serializer.endTag(null, "age");
serializer.endTag(null, "person");
}
serializer.endTag(null, "persons");
serializer.endDocument();
outputStream.flush();
outputStream.close();
}
源代码： http://download.csdn.net/detail/hewence1/8240265