Question

我在解析时有一个java bean类设置值。我需要访问这个类全局但在使用其实例静态时给出空指针异常并在其中赋值.Code为： -

private String Responce;
private String Error;
private String Url;
private SIPModle objsip;
private VMModle objvmmodle;
private ArrayList<CustompadModle> objcmodlelist = new ArrayList<CustompadModle>();
private SettingModle objsettingmodle;
private WifiModle objwifimodle;

public String getResponce() {
    return Responce;
}
public void setResponce(String responce) {
    Responce = responce;
}
public String getError() {
    return Error;
}
public void setError(String error) {
    Error = error;
}
public ArrayList<CustompadModle> getObjcmodlelist() {
    return objcmodlelist;
}
public void setObjcmodlelist(CustompadModle objcmodlelist) {
    this.objcmodlelist.add(objcmodlelist);
}
public String getUrl() {
    return Url;
}
public void setUrl(String url) {
    Url = url;
}
public SIPModle getObjsip() {
    return objsip;
}
public void setObjsip(SIPModle objsip) {
    this.objsip = objsip;
}
public VMModle getObjvmmodle() {
    return objvmmodle;
}
public void setObjvmmodle(VMModle objvmmodle) {
    this.objvmmodle = objvmmodle;
}

public SettingModle getObjsettingmodle() {
    return objsettingmodle;
}
public void setObjsettingmodle(SettingModle objsettingmodle) {
    this.objsettingmodle = objsettingmodle;
}
public WifiModle getObjwifimodle() {
    return objwifimodle;
}
public void setObjwifimodle(WifiModle objwifimodle) {
    this.objwifimodle = objwifimodle;
}

我的要求是全球访问这个bean类全球。任何人建议我

我在doinbackground中获取此对象，并将该类的静态对象分配为： AsyncTask {

    ProgressDialog objprogress = new ProgressDialog(
            UserSettingConfiguration.this);
    ApplicationRequestHandler objhandler = new ApplicationRequestHandler();

    @Override
    protected void onPreExecute() {
        this.objprogress.setMessage("Please Wait While Loading...");
        this.objprogress.isShowing();
    }

    @Override
    protected ConfigurationSttingModle doInBackground(String... params) {
        objconfigsetting = objhandler.getConfigurationSetting(params[0],
                params[1], params[2], params[3]);
        return objconfigsetting;
    }

    @Override
    protected void onPostExecute(ConfigurationSttingModle result) {
        if (this.objprogress.isShowing()) {
            this.objprogress.dismiss();
        }


    }
}

并在课程中使用Advance作为; -

private static HashMap<String, String> SUMMARIES = new HashMap<String, String>() {

    private static final long serialVersionUID = 3055562364235868653L;

    {
        String server = UserSettingConfiguration.objconfigsetting.getObjsip().getServer();
        String displayname1 = UserSettingConfiguration.objconfigsetting.getObjsip().getUser();
        String user = UserSettingConfiguration.objconfigsetting.getObjsip().getUser();
        String password= UserSettingConfiguration.objconfigsetting.getObjsip().getPassword();

        put(FIELD_DISPLAY_NAME,displayname1);// "90901");
        put(FIELD_CALLER_ID,displayname1); //"90901");
        put(FIELD_SERVER,server);
        put(FIELD_USERNAME,user);
        put(FIELD_AUTH_ID, "207");
        put(FIELD_PASSWORD,password);
        put(FIELD_PROXY, null);
    }
};

Answer 1

我认为单身模式符合您的要求。

您必须添加以下代码：

private static MyJavaBeanClass = null;

public static MyJavaBeanClass getInstance(){
  if(null == instance){
    instance = new MyJavaBeanClass();
  }
  return instance;
}

您必须更改MyJavaBeanClass作为您的类的名称，然后您可以在任何地方调用它：

MyJavaBeanClass.getInstance().setError("Testing");

如何在全球范围内访问Java Bean类？

1 个答案: