关于java：Spring-@PostConstruct方法调用了两次


Spring - @PostConstruct method called two times

这是我的Spring Controller类

1
2
3
4
5
6
7
8
9
10
11
12
13
14
@Controller
public class SchedularController{

  @Autowired
  ProjectRepository projectRepository;

  @Autowired
  UtilityRepository utilityRepository;

  @PostConstruct
  public void postconstruct(){
      System.out.println("Starting schedular...");
   }
}

问题是当我启动服务器时postconstruct方法运行两次。

我检查了另一篇文章，其中大部分内容是："如果您有多个框架管理同一个bean类，例如JSF和CDI，或JSF和Spring，或CDI和Spring等，则可能会发生这种情况。"

但是我没有使用JSF或CDI并仍然存在此问题。(而且我的@PostConstruct方法在控制器类中)

该如何解决？

编辑-

这是我的pom文件

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
<project xmlns="http://maven.apache.org/POM/4.0.0"     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0    http://maven.apache.org/xsd/maven-4.0.0.xsd">
 <modelVersion>4.0.0</modelVersion>
 <groupId>WBPPM</groupId>
 WBPPM</artifactId>
 <version>0.0.1-SNAPSHOT</version>
 <packaging>war</packaging>
 <url>http://maven.apache.org</url>

<properties>
    <spring.version>4.0.3.RELEASE</spring.version>
    <spring.security.version>3.0.5.RELEASE</spring.security.version>
    <mongo-java-driver.version>3.0.2</mongo-java-driver.version>
    <spring-data-commons.version>1.7.2.RELEASE</spring-data-commons.version>
    <spring-data-mongodb.version>1.4.2.RELEASE</spring-data-mongodb.version>
    <org.aspectj-version>1.7.4</org.aspectj-version>
    <jackson.databind-version>2.2.3</jackson.databind-version>
    <log4j.version>1.2.17</log4j.version>
    <slf4j.version>1.7.6</slf4j.version>
</properties>

<dependencies>
    <dependency>
        <groupId>junit</groupId>
        junit</artifactId>
        <version>3.8.1</version>
        <scope>test</scope>
    </dependency>

    <!-- Spring Security -->

    <dependency>
        <groupId>org.springframework.security</groupId>
        spring-security-web</artifactId>
        <version>${spring.security.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        spring-security-config</artifactId>
        <version>${spring.security.version}</version>
    </dependency>

    <!-- Spring -->
    <dependency>
        <groupId>org.springframework</groupId>
        spring-core</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        spring-beans</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        spring-aop</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <!-- <dependency> <groupId>org.springframework</groupId> spring-aspects</artifactId>
        <version>${spring.version}</version> </dependency> -->
    <dependency>
        <groupId>org.springframework</groupId>
        spring-orm</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        spring-web</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        spring-webmvc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.ws</groupId>
        spring-oxm</artifactId>
        <version>1.5.10</version>
    </dependency>
    <dependency>
        <groupId>org.codehaus.jettison</groupId>
        jettison</artifactId>
        <version>1.1</version>
    </dependency>
    <dependency>
        <groupId>org.codehaus.castor</groupId>
        castor</artifactId>
        <version>1.2</version>
    </dependency>
    <dependency>
        <groupId>xerces</groupId>
        xercesImpl</artifactId>
        <version>2.8.1</version>
    </dependency>
    <dependency>
        <groupId>javax.xml.bind</groupId>
        jaxb-api</artifactId>
        <version>2.0</version>
    </dependency>
    <!-- Xstream and Json provider -->
    <dependency>
        <groupId>com.thoughtworks.xstream</groupId>
        xstream</artifactId>
        <version>1.3.1</version>
        <type>jar</type>
    </dependency>
    <!-- Jackson -->
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        jackson-databind</artifactId>
        <version>${jackson.databind-version}</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        jackson-annotations</artifactId>
        <version>${jackson.databind-version}</version>
    </dependency>

    <!-- Spring / MongoDB -->
    <dependency>
        <groupId>org.mongodb</groupId>
        mongo-java-driver</artifactId>
        <version>${mongo-java-driver.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.data</groupId>
        spring-data-mongodb</artifactId>
        <version>${spring-data-mongodb.version}</version>
    </dependency>

    <dependency>
        <groupId>cglib</groupId>
        cglib</artifactId>
        <version>2.2.2</version>
    </dependency>
    <!-- Tiles plugins -->
    <dependency>
        <groupId>org.apache.tiles</groupId>
        tiles-jsp</artifactId>
        <version>3.0.3</version>
    </dependency>
    <!-- <dependency> <groupId>org.slf4j</groupId> slf4j-log4j12</artifactId>
        <version>1.5.11</version> </dependency> -->
    <!-- JSTL plugins -->
    <!-- Log4j -->
    <dependency>
        <groupId>log4j</groupId>
        log4j</artifactId>
        <version>${log4j.version}</version>
    </dependency>
    <dependency>
        <groupId>org.slf4j</groupId>
        slf4j-log4j12</artifactId>
        <version>${slf4j.version}</version>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        jstl</artifactId>
        <version>1.2</version>
    </dependency>
    <!-- java mail -->
    <dependency>
        <groupId>javax.mail</groupId>
        mail</artifactId>
        <version>1.4.4</version>
    </dependency>
    <!-- AspectJ -->
    <dependency>
        <groupId>org.aspectj</groupId>
        aspectjrt</artifactId>
        <version>${org.aspectj-version}</version>
    </dependency>
    <dependency>
        <groupId>org.aspectj</groupId>
        aspectjweaver</artifactId>
        <version>${org.aspectj-version}</version>
    </dependency>
    <dependency>
        <groupId>commons-lang</groupId>
        commons-lang</artifactId>
        <version>2.6</version>
    </dependency>


    <dependency>
        <groupId>commons-fileupload</groupId>
        commons-fileupload</artifactId>
        <version>1.2.2</version>
    </dependency>

    <!-- Recaptcha check Api -->
    <dependency>
     <groupId>org.glassfish</groupId>
     javax.json</artifactId>
     <version>1.0.2</version>
    </dependency>

    <!-- Apache Commons Upload -->
    <dependency>
        <groupId>commons-io</groupId>
        commons-io</artifactId>
        <version>1.3.2</version>
    </dependency>

    <!-- Jasper Report -->
    <!-- <dependency>
        <groupId>net.sf.jasperreports</groupId>
        jasperreports</artifactId>
        <version>5.6.0</version>
    </dependency> -->

    <!-- Freemarker Template -->
    <dependency>
        <groupId>org.freemarker</groupId>
        freemarker</artifactId>
        <version>2.3.20</version>
    </dependency>

    <!-- <dependency>
        <groupId>com.jolbox</groupId>
        bonecp</artifactId>
        <version>0.8.0.RELEASE</version>
    </dependency> -->

    <!-- Excel File Read/write -->
    <dependency>
        <groupId>org.apache.poi</groupId>
        poi-ooxml</artifactId>
        <version>3.11</version>
    </dependency>

    <!-- amazonaws -->
    <dependency>
        <groupId>com.amazonaws</groupId>
        aws-java-sdk-s3</artifactId>
        <version>1.10.4</version>
    </dependency>

    <!-- Push Notification -->
    <dependency>
        <groupId>com.ganyo</groupId>
        gcm-server</artifactId>
        <version>1.0.2</version>
    </dependency>
    <dependency>
        <groupId>es.arcadiaconsulting.javapns</groupId>
        javapns</artifactId>
        <version>2.2-json</version>
    </dependency>

    <!-- http://mvnrepository.com/artifact/it.sauronsoftware.cron4j/cron4j -->
    <dependency>
        <groupId>it.sauronsoftware.cron4j</groupId>
        cron4j</artifactId>
        <version>2.2.5</version>
    </dependency>



</dependencies>

<build>
    <sourceDirectory>src</sourceDirectory>
    <plugins>
        <plugin>
            maven-compiler-plugin</artifactId>
            <version>3.1</version>
            <configuration>
                <source>1.7</source>
                <target>1.7</target>
            </configuration>
        </plugin>
        <plugin>
            maven-war-plugin</artifactId>
            <version>2.3</version>
            <configuration>
                <warSourceDirectory>WebContent</warSourceDirectory>
                <failOnMissingWebXml>false</failOnMissingWebXml>
            </configuration>
        </plugin>
    </plugins>
</build>
</project>

这是我的spring上下文文件-

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jaxrs="http://cxf.apache.org/jaxrs"
xmlns:cxf="http://cxf.apache.org/core" xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:oxm="http://www.springframework.org/schema/oxm"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mongo="http://www.springframework.org/schema/data/mongo"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://cxf.apache.org/jaxrs http://cxf.apache.org/schemas/jaxrs.xsd
http://cxf.apache.org/core http://cxf.apache.org/schemas/core.xsd
http://www.springframework.org/schema/oxm http://www.springframework.org/schema/oxm/spring-oxm-1.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/data/mongo
http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd">

<context:component-scan base-package="com.wb.ppm" />
<context:annotation-config />
<mvc:annotation-driven />

<mvc:interceptors>
    <mvc:interceptor>
        <mvc:mapping path="/**/*" />
        <bean id="webContentInterceptor"
            class="org.springframework.web.servlet.mvc.WebContentInterceptor">
            <property name="cacheSeconds" value="0" />
            <property name="useExpiresHeader" value="true" />
            <property name="useCacheControlHeader" value="true" />
            <property name="useCacheControlNoStore" value="true" />
        </bean>
    </mvc:interceptor>
    <mvc:interceptor>
        <mvc:mapping path="/*" />
        <bean class="com.wb.ppm.util.interceptor.WBInterceptor">
        </bean>
    </mvc:interceptor>
</mvc:interceptors>

<bean id="loggingAspect" class="com.wb.ppm.util.logging.LoggingAspect" />
<bean id="applicationContext" class="com.wb.ppm.security.SpringApplicationContext"
    factory-method="getInstance" />

<bean
    class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
</bean>
<bean id="localeResolver"
    class="org.springframework.web.servlet.i18n.SessionLocaleResolver">
    <property name="defaultLocale" value="en" />
</bean>

<bean id="localeChangeInterceptor"
    class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor">
    <property name="paramName" value="language" />
</bean>

<bean
    class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping">
    <property name="interceptors">
        <list>
            <ref bean="localeChangeInterceptor" />
        </list>
    </property>
</bean>
<!-- Register the welcome.properties -->
<bean id="messageSource"
    class="org.springframework.context.support.ResourceBundleMessageSource">
    <property name="basename" value="ApplicationResources" />
</bean>

<!-- Factory bean that creates the Mongo instance -->
<context:property-placeholder location="classpath:mongodb.properties"
    order="1" />

<bean id="mongo" class="org.springframework.data.mongodb.core.MongoFactoryBean">
    <property name="host" value="${mongo.host.name}" />
    <property name="port" value="${mongo.host.port}" />
</bean>


<bean id="mongoDbFactory" class="org.springframework.data.mongodb.core.SimpleMongoDbFactory">
    <constructor-arg name="mongo" ref="mongo" />
    <constructor-arg name="databaseName" value="${mongo.db.name}" />
</bean>


<mongo:mapping-converter id="converter" />
<bean name="gridFsTemplate"
    class="org.springframework.data.mongodb.gridfs.GridFsTemplate">
    <constructor-arg ref="mongoDbFactory" />
    <constructor-arg ref="converter" />
</bean>

<bean id="userCredentials" class="org.springframework.data.authentication.UserCredentials">
    <constructor-arg name="username" value="${mongo.db.username}" />
    <constructor-arg name="password" value="${mongo.db.password}" />
</bean>

<!-- MongoConverter for converting the dot in map key to \\+ in mongodb  -->
<bean id="mongoMoxydomainConverter" class="org.springframework.data.mongodb.core.convert.MappingMongoConverter">
    <constructor-arg index="0" ref="mongoDbFactory" />
    <constructor-arg index="1">
        <bean class="org.springframework.data.mongodb.core.mapping.MongoMappingContext" />
    </constructor-arg>
    <property name="mapKeyDotReplacement" value="\\\\+"/>
</bean>


<!-- MongoTemplate for connecting and querying the documents in the database -->
<bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
    <constructor-arg name="mongoDbFactory" ref="mongoDbFactory" />
    <constructor-arg name="mongoConverter" ref="mongoMoxydomainConverter"/>
    <!-- <constructor-arg name="userCredentials" ref="userCredentials" /> -->
</bean>

<!-- Use this post processor to translate any MongoExceptions thrown in
    @Repository annotated classes -->
<bean
    class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />

<!-- Register the welcome.properties -->
<bean id="tilesConfigurer"
    class="org.springframework.web.servlet.view.tiles3.TilesConfigurer">
    <property name="definitions">
        <list>
            <value>/WEB-INF/tiles.xml</value>
        </list>
    </property>
</bean>

<bean id="tilesviewResolver"
    class="org.springframework.web.servlet.view.UrlBasedViewResolver">
    <property name="viewClass"
        value="org.springframework.web.servlet.view.tiles3.TilesView" />
    <property name="order" value="2"></property>
</bean>

<bean id="jstlviewResolver"
    class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="viewClass"
        value="org.springframework.web.servlet.view.JstlView" />
    <property name="prefix" value="/pages/" />
    <property name="suffix" value=".jsp" />
    <property name="order" value="3"></property>
</bean>

<!-- Configure to plugin JSON as request and response in method handler -->
<bean
    class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
    <property name="messageConverters">
        <list>
            <ref bean="jsonMessageConverter" />
            <ref bean="xmlMessageConverter" />
        </list>
    </property>
</bean>

<bean
    class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
</bean>

<!-- Configure bean to convert JSON to POJO and vice versa -->
<bean id="jsonMessageConverter"
    class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
    <property name="supportedMediaTypes" value="application/json" />
</bean>
<bean id="multipartResolver"
    class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
    <property name="maxUploadSize" value="150000000"/>
    <property name="maxInMemorySize" value="150000000"/>
</bean>

<bean id="xmlMessageConverter"
    class="org.springframework.http.converter.xml.MarshallingHttpMessageConverter">
    <property name="marshaller" ref="castorMarshaller" />
    <property name="unmarshaller" ref="castorMarshaller" />
    <property name="supportedMediaTypes" value="application/xml" />
</bean>
<bean id="castorMarshaller" class="org.springframework.oxm.castor.CastorMarshaller">
</bean>
<bean id="simpleMappingExceptionResolver"
    class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
    <property name="exceptionMappings">
        <map>
            <entry key="NotAuthorizedException" value="redirect:/login" />
        </map>
    </property>
    <property name="defaultErrorView" value="redirect:/pages/error/globalError.jsp" />
</bean>

这是我的web.xml

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="WebApp_ID" version="3.0">
<display-name>WorldBankPPM</display-name>
<!-- Spring Listeners -->
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:worldbank-context.xml
        classpath:security-applicationContext.xml
    </param-value>
</context-param>
<context-param>
    <param-name>log4j-config-location</param-name>
    <param-value>src/log4j.properties</param-value>
</context-param>
<listener>
    <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<filter>
    <filter-name>springSecurityFilterChain</filter-name>
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>

<filter-mapping>
    <filter-name>springSecurityFilterChain</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

<servlet>
    <servlet-name>appServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/classes/worldbank-context.xml</param-value>
    </init-param>
    <load-on-startup>0</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>appServlet</servlet-name>
    <url-pattern>/</url-pattern>
    <url-pattern>/login</url-pattern>
</servlet-mapping>
<session-config>
    <session-timeout>360</session-timeout>
</session-config>
<welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<servlet-mapping>
    <servlet-name>default</servlet-name>
    <url-pattern>/assets/*</url-pattern>
    <url-pattern>/vendor/*</url-pattern>
</servlet-mapping>
<servlet>
    <servlet-name>jsp</servlet-name>
    <servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
    <init-param>
        <param-name>fork</param-name>
        <param-value>false</param-value>
    </init-param>
    <init-param>
        <param-name>xpoweredBy</param-name>
        <param-value>false</param-value>
    </init-param>
    <init-param>
        <param-name>mappedfile</param-name>
        <param-value>false</param-value>
    </init-param>
    <load-on-startup>3</load-on-startup>
</servlet>
<error-page>
    <error-code>404</error-code>
    <location>/pages/error/error404.jsp</location>
</error-page>
<error-page>
    <error-code>500</error-code>
    <location>/pages/error/globalError.jsp</location>
</error-page>
<!-- <security-constraint>
    <web-resource-collection>
        <web-resource-name>securedapp</web-resource-name>
        <url-pattern>/*</url-pattern>
    </web-resource-collection>
    <user-data-constraint>
        <transport-guarantee>CONFIDENTIAL</transport-guarantee>
    </user-data-constraint>
</security-constraint> -->

相关讨论

几天前我也面临着同样的问题，并且我已经成功解决了这个问题。

就我而言，我已经使用Spring启动程序创建了应用程序。

在Eclipse或任何IDE中导入项目时，您会看到主包中有两个类：

  • 扩展了SpringBootServletInitializer并覆盖configure()的

    ServletInitializer.java，当我们创建war文件并在tomcat服务器下运行时会调用它。

  • YourApplication.java包含main()，如果在本地服务器上运行/调试应用程序，则它是我们应用程序的入口点。

    • 我已参考此文件创建战争文件并进行必要的更改。

    问题是我忘了删除ServletInitializer.java，它也包含相同的方法，这是初始化两次的主要原因。

    一旦从该文件中删除了多余的代码，Spring Boot将只初始化一次上下文，并且能够执行一次代码。