Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Property 'dataSource' is required

Question

I am working on an legacy Spring MVC Project and found issue while deploying to tomcat 8.5

However the class has datasource defined .I searched in google and found to add datasource in server-context xml but i don't have any such server-context.xml in my application.

Below is the bean which is throwing error.

<bean id="languageDao"
        class="com.test.daoImpl.LanguageDAOImpl"
        init-method="init">
        <property name="cspLanguageGet" value="csp_LANGUAGE_Get" />
    </bean>

LanguageDAOImpl.class:

public class LanguageDAOImpl implements LanguageDAO {


    private DataSource dataSource;

    private SimpleJdbcCall languageGet;

    private String cspLanguageGet;

    @Qualifier("template")
    @Autowired
    public void setDataSource(DataSource dataSource) {
        this.dataSource = dataSource;
    }

    @Required
    public void setCspLanguageGet(String cspLanguageGet) {
        this.cspLanguageGet = cspLanguageGet;
    }

    public void init() {
        this.languageGet = new SimpleJdbcCall(dataSource).withProcedureName(cspLanguageGet);
        this.languageGet.compile();
    }

//functions

Error stack trace:

Property 'dataSource' is required
        at org.springframework.jdbc.support.JdbcAccessor.afterPropertiesSet(JdbcAccessor.java:134)
        at org.springframework.jdbc.core.JdbcTemplate.<init>(JdbcTemplate.java:165)
        at org.springframework.jdbc.core.simple.AbstractJdbcCall.<init>(AbstractJdbcCall.java:87)
        at org.springframework.jdbc.core.simple.SimpleJdbcCall.<init>(SimpleJdbcCall.java:69)
        at com.aexp.travel.docdelivery.tcapp.daoImpl.LanguageDAOImpl.init(LanguageDAOImpl.java:56)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)

Can anyoone please where it is wrong?

Nice that it is defined in the class, it is however not getting autowired. Either remove the annotations and autowire in xml, or enable annotation support through `` or by enabling component scanning ``. — M. Deinum, Feb 13 '20 at 06:47
i do have with the base package in dispatcher-servlet.xml but still facing the error — kinnu, Feb 13 '20 at 06:50
Then this class isn't part of that context, but loaded otherwise. For instance by the `ContextLoaderListener` instead of the `DispatcherServlet`. Else it would simply fail before invoking the `init` method because the `@Autowired` wouldn't be fullfilled. — M. Deinum, Feb 13 '20 at 06:56
Do i really need to declare a bean of LanguageDaoImpl in dao-beans.xml if I annotate it with @Repository? — kinnu, Feb 13 '20 at 07:17
Not if you have a proper component-scan. However that will not invoke the `init` method unless you place `@PostConstruct` on it. — M. Deinum, Feb 13 '20 at 07:18
Please update the question with complete error stack to understand how the init method is getting triggered — R.G, Feb 13 '20 at 07:46

Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Property 'dataSource' is required

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