java.lang.IllegalStateException:无法执行活动的方法(尝试发送邮件)
我正在尝试使用找到的代码 从Android应用程序发送电子邮件 我正在使用ADT Build 22.0.5 我见过很多人都有这个问题,但原因不尽相同,我实在想不起来 这是完整的错误日志java.lang.IllegalStateException:无法执行活动的方法(尝试发送邮件),java,android,eclipse,jakarta-mail,Java,Android,Eclipse,Jakarta Mail,我正在尝试使用找到的代码 从Android应用程序发送电子邮件 我正在使用ADT Build 22.0.5 我见过很多人都有这个问题,但原因不尽相同,我实在想不起来 这是完整的错误日志 09-14 15:53:49.001: E/AndroidRuntime(4611): FATAL EXCEPTION: main 09-14 15:53:49.001: E/AndroidRuntime(4611): java.lang.IllegalStateException: Could not
09-14 15:53:49.001: E/AndroidRuntime(4611): FATAL EXCEPTION: main
09-14 15:53:49.001: E/AndroidRuntime(4611): java.lang.IllegalStateException: Could not execute method of the activity
09-14 15:53:49.001: E/AndroidRuntime(4611): at android.view.View$1.onClick(View.java:3599)
09-14 15:53:49.001: E/AndroidRuntime(4611): at android.view.View.performClick(View.java:4204)
09-14 15:53:49.001: E/AndroidRuntime(4611): at android.view.View$PerformClick.run(View.java:17355)
09-14 15:53:49.001: E/AndroidRuntime(4611): at android.os.Handler.handleCallback(Handler.java:725)
09-14 15:53:49.001: E/AndroidRuntime(4611): at android.os.Handler.dispatchMessage(Handler.java:92)
09-14 15:53:49.001: E/AndroidRuntime(4611): at android.os.Looper.loop(Looper.java:137)
09-14 15:53:49.001: E/AndroidRuntime(4611): at android.app.ActivityThread.main(ActivityThread.java:5041)
09-14 15:53:49.001: E/AndroidRuntime(4611): at java.lang.reflect.Method.invokeNative(Native Method)
09-14 15:53:49.001: E/AndroidRuntime(4611): at java.lang.reflect.Method.invoke(Method.java:511)
09-14 15:53:49.001: E/AndroidRuntime(4611): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
09-14 15:53:49.001: E/AndroidRuntime(4611): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
09-14 15:53:49.001: E/AndroidRuntime(4611): at dalvik.system.NativeStart.main(Native Method)
09-14 15:53:49.001: E/AndroidRuntime(4611): Caused by: java.lang.reflect.InvocationTargetException
09-14 15:53:49.001: E/AndroidRuntime(4611): at java.lang.reflect.Method.invokeNative(Native Method)
09-14 15:53:49.001: E/AndroidRuntime(4611): at java.lang.reflect.Method.invoke(Method.java:511)
09-14 15:53:49.001: E/AndroidRuntime(4611): at android.view.View$1.onClick(View.java:3594)
09-14 15:53:49.001: E/AndroidRuntime(4611): ... 11 more
09-14 15:53:49.001: E/AndroidRuntime(4611): Caused by: java.lang.NoClassDefFoundError: com.example.naghe.Mail
09-14 15:53:49.001: E/AndroidRuntime(4611): at com.example.naghe.NagheMainActivity.sendMessage(NagheMainActivity.java:21)
这是我的主要活动
package com.example.naghe;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class NagheMainActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_naghe_main);
}
public void sendMessage (View view) {
Mail m = new Mail("test", "test");
String[] toArr = {"mail};
m.setTo(toArr);
m.setFrom("wooo@wooo.com");
m.setSubject("This is an email sent using my Mail JavaMail wrapper from an Android device.");
m.setBody("Email body.");
try {
m.addAttachment("/sdcard/filelocation");
if(m.send()) {
Toast.makeText(NagheMainActivity.this, "Email was sent successfully.", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(NagheMainActivity.this, "Email was not sent.", Toast.LENGTH_LONG).show();
}
} catch(Exception e) {
//Toast.makeText(MailApp.this, "There was a problem sending the email.", Toast.LENGTH_LONG).show();
Log.e("MailApp", "Could not send email", e);
}
}
}
这是XML,它只是一个按钮,因为我正在测试它
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".NagheMainActivity" >
<Button
android:id="@+id/send"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="84dp"
android:onClick="sendMessage"
android:text="Button" />
</RelativeLayout>
是的,我的项目中有班级邮件。
你可以在这篇文章的第一个链接上找到这个类,但是在这里
Mail.java
package com.example.naghe;
import java.util.Date;
import java.util.Properties;
import javax.activation.CommandMap;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.activation.MailcapCommandMap;
import javax.mail.BodyPart;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
public class Mail extends javax.mail.Authenticator {
private String _user;
private String _pass;
private String[] _to;
private String _from;
private String _port;
private String _sport;
private String _host;
private String _subject;
private String _body;
private boolean _auth;
private boolean _debuggable;
private Multipart _multipart;
public Mail() {
_host = "smtp.gmail.com"; // default smtp server
_port = "465"; // default smtp port
_sport = "465"; // default socketfactory port
_user = ""; // username
_pass = ""; // password
_from = ""; // email sent from
_subject = ""; // email subject
_body = ""; // email body
_debuggable = false; // debug mode on or off - default off
_auth = true; // smtp authentication - default on
_multipart = new MimeMultipart();
// There is something wrong with MailCap, javamail can not find a handler for the multipart/mixed part, so this bit needs to be added.
MailcapCommandMap mc = (MailcapCommandMap) CommandMap.getDefaultCommandMap();
mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html");
mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml");
mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain");
mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed");
mc.addMailcap("message/rfc822;; x-java-content-handler=com.sun.mail.handlers.message_rfc822");
CommandMap.setDefaultCommandMap(mc);
}
public Mail(String user, String pass) {
this();
_user = user;
_pass = pass;
}
public boolean send() throws Exception {
Properties props = _setProperties();
if(!_user.equals("") && !_pass.equals("") && _to.length > 0 && !_from.equals("") && !_subject.equals("") && !_body.equals("")) {
Session session = Session.getInstance(props, this);
MimeMessage msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(_from));
InternetAddress[] addressTo = new InternetAddress[_to.length];
for (int i = 0; i < _to.length; i++) {
addressTo[i] = new InternetAddress(_to[i]);
}
msg.setRecipients(MimeMessage.RecipientType.TO, addressTo);
msg.setSubject(_subject);
msg.setSentDate(new Date());
// setup message body
BodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setText(_body);
_multipart.addBodyPart(messageBodyPart);
// Put parts in message
msg.setContent(_multipart);
// send email
Transport.send(msg);
return true;
} else {
return false;
}
}
public void addAttachment(String filename) throws Exception {
BodyPart messageBodyPart = new MimeBodyPart();
DataSource source = new FileDataSource(filename);
messageBodyPart.setDataHandler(new DataHandler(source));
messageBodyPart.setFileName(filename);
_multipart.addBodyPart(messageBodyPart);
}
@Override
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(_user, _pass);
}
private Properties _setProperties() {
Properties props = new Properties();
props.put("mail.smtp.host", _host);
if(_debuggable) {
props.put("mail.debug", "true");
}
if(_auth) {
props.put("mail.smtp.auth", "true");
}
props.put("mail.smtp.port", _port);
props.put("mail.smtp.socketFactory.port", _sport);
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.socketFactory.fallback", "false");
return props;
}
// the getters and setters
public String getBody() {
return _body;
}
public void setBody(String _body) {
this._body = _body;
}
public void setTo(String[] _to) {
this._to = _to;
}
public void setFrom(String _from){
this._from = _from;
}
public void setSubject(String _subject){
this._subject = _subject;
}
// more of the getters and setters …..
}
package com.example.naghe;
导入java.util.Date;
导入java.util.Properties;
导入javax.activation.CommandMap;
导入javax.activation.DataHandler;
导入javax.activation.DataSource;
导入javax.activation.FileDataSource;
导入javax.activation.MailcapCommandMap;
导入javax.mail.BodyPart;
导入javax.mail.Multipart;
导入javax.mail.PasswordAuthentication;
导入javax.mail.Session;
导入javax.mail.Transport;
导入javax.mail.internet.InternetAddress;
导入javax.mail.internet.MimeBodyPart;
导入javax.mail.internet.mimessage;
导入javax.mail.internet.MimeMultipart;
公共类邮件扩展了javax.Mail.Authenticator{
私有字符串用户;
私人字符串传递;
私有字符串[]_至;
私有字符串_来自;
专用字符串\u端口;
私人弦乐运动;
私有字符串\u主机;
私有字符串(subject);;
私有字符串(body),;
私有布尔认证;
私有布尔可调试;
私有多部分_多部分;
公共邮件(){
_host=“smtp.gmail.com”;//默认smtp服务器
_port=“465”;//默认smtp端口
_sport=“465”//默认socketfactory端口
_user=”“;//用户名
_pass=”“;//密码
_from=”“;//从发送的电子邮件
_subject=”“;//电子邮件主题
_body=”“;//电子邮件正文
_debuggable=false;//打开或关闭调试模式-默认关闭
_auth=true;//smtp身份验证-默认为打开
_multipart=新的MimeMultipart();
//MailCap有点问题,javamail无法找到多部分/混合部分的处理程序,因此需要添加此位。
MailcapCommandMap mc=(MailcapCommandMap)CommandMap.getDefaultCommandMap();
mc.addMailcap(“text/html;x-java-content-handler=com.sun.mail.handlers.text_html”);
mc.addMailcap(“text/xml;x-java-content-handler=com.sun.mail.handlers.text_xml”);
mc.addMailcap(“text/plain;;x-java-content-handler=com.sun.mail.handlers.text_plain”);
mc.addMailcap(“multipart/*;x-java-content-handler=com.sun.mail.handlers.multipart_mixed”);
mc.addMailcap(“message/rfc822;;x-java-content-handler=com.sun.mail.handlers.message_rfc822”);
setDefaultCommandMap(mc);
}
公用邮件(字符串用户,字符串传递){
这个();
_用户=用户;
_通过=通过;
}
public boolean send()引发异常{
Properties props=_setProperties();
如果(!\u user.equals(“”&)&!\u pass.equals(“”&)&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
Session Session=Session.getInstance(props,this);
MimeMessage msg=新MimeMessage(会话);
msg.setFrom(新的Internet地址(_-from));
InternetAddress[]addressTo=新的InternetAddress[_to.length];
对于(int i=0;i<_to.length;i++){
addressTo[i]=新的Internet地址(_to[i]);
}
msg.setRecipients(mimessage.RecipientType.TO,addressTo);
msg.setSubject(_subject);
msg.setSentDate(新日期());
//设置消息正文
BodyPart messageBodyPart=新的MimeBodyPart();
messageBodyPart.setText(_body);
_multipart.addBodyPart(messageBodyPart);
//将部件放入消息中
msg.setContent(_多部分);
//发送电子邮件
发送(msg);
返回true;
}否则{
返回false;
}
}
public void addAttachment(字符串文件名)引发异常{
BodyPart messageBodyPart=新的MimeBodyPart();
DataSource source=新文件DataSource(文件名);
setDataHandler(新的DataHandler(源));
messageBodyPart.setFileName(文件名);
_multipart.addBodyPart(messageBodyPart);
}
@凌驾
公共密码身份验证getPasswordAuthentication(){
返回新密码身份验证(_user,_pass);
}
私有属性_setProperties(){
Properties props=新属性();
props.put(“mail.smtp.host”,\u host);
如果(_可调试){
props.put(“mail.debug”,“true”);
}
如果(_auth){
props.put(“mail.smtp.auth”,“true”);
}
props.put(“mail.smtp.port”,_-port);
props.put(“mail.smtp.socketFactory.port”,_sport);
put(“mail.smtp.socketFactory.class”、“javax.net.ssl.SSLSocketFactory”);
props.put(“mail.smtp.socketFactory.fallback”、“false”);
返回道具;
}
//接球手和二传手
公共字符串getBody(){
返回体;
}
公共体(字符串_体){
这个。_body=_body;
}
public void setTo(字符串[]_to){
这个._to=_to;
}
公共void setFrom(字符串_from){
这个.\u from=\u from;
}
public void setSubject(字符串_subject){
这个._subject=_subject;
}
//更多的能手和二传手…。。
}
任何帮助都将非常感谢 它是由
09-14 15:53:49.001:E/AndroidRuntime(4611):由java.lang.reflect.InvocationTargetException引起
意味着您引用的资源在XML中实际上不存在(或不存在于其他地方)
请交叉检查您从java引用的xml小部件,或者您也可以发布xml文件(我来看看)
也
原因:java.lang.NoClassDefFoundError:com.example.naghe.Mail
同时检查您的课程中是否包含邮件课程