Spring

问题 It works good when the application is running from Eclipse. But the problem is starting after i packaging the app to JAR or WAR and running it. Getting 404 on every pages. Here what i have done so far: Here my POM file: <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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>springtry</groupId> <artifactId

问题 I am getting the below error message while getting the user entity from the openfire rest api. ( I am wrapping the my Api Endpoints with openfire Restapi Endpoints.) "error": "Internal Server Error", "exception": "org.springframework.http.converter.HttpMessageNotWritableException", "message": "Could not write JSON: No serializer found for class java.io.ByteArrayInputStream and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY

问题 I am getting the below error message while getting the user entity from the openfire rest api. ( I am wrapping the my Api Endpoints with openfire Restapi Endpoints.) "error": "Internal Server Error", "exception": "org.springframework.http.converter.HttpMessageNotWritableException", "message": "Could not write JSON: No serializer found for class java.io.ByteArrayInputStream and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY

问题 I am getting the below error message while getting the user entity from the openfire rest api. ( I am wrapping the my Api Endpoints with openfire Restapi Endpoints.) "error": "Internal Server Error", "exception": "org.springframework.http.converter.HttpMessageNotWritableException", "message": "Could not write JSON: No serializer found for class java.io.ByteArrayInputStream and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY

问题 I'm using Spring boot and I can't store emojis in database. I don't have access to my.cnf file. What I've done so far is: ALTER DATABASE name CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci; For each table: ALTER TABLE table CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci; For each column: ALTER TABLE table CHANGE column column VARCHAR(190) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci; In application.properties file I'm using this: spring.datasource.url = jdbc:mysql:/

问题 I'm using Spring boot and I can't store emojis in database. I don't have access to my.cnf file. What I've done so far is: ALTER DATABASE name CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci; For each table: ALTER TABLE table CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci; For each column: ALTER TABLE table CHANGE column column VARCHAR(190) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci; In application.properties file I'm using this: spring.datasource.url = jdbc:mysql:/

问题 I am using a spring(version 3.2.5) annotation driven mvc application, basically I need be able to catch any wrong url to a single method then display an error message. For instance, if my correct url www.url.valid/login maps to a controller, if the user mistakenly insert loginw or any invalid url it should map to a default controller. I have tried the following way: package com.controller; import static com.mns.utils.Constants.REGISTER_FAIL; import javax.servlet.http.HttpServletRequest;

问题 I try to deploy my war file. But after success deployment. I get this log: [root@dfdfdf bin]# export JAVA_HOME="/usr/java/jdk1.8.0_112/" [root@dfdfdfdbin]# ./startup.sh Using CATALINA_BASE: /root/apache-tomcat-8.5.8 Using CATALINA_HOME: /root/apache-tomcat-8.5.8 Using CATALINA_TMPDIR: /root/apache-tomcat-8.5.8/temp Using JRE_HOME: /usr/java/jdk1.8.0_112/ Using CLASSPATH: /root/apache-tomcat-8.5.8/bin/bootstrap.jar:/root/apache-tomcat-8.5.8/bin/tomcat-juli.jar Tomcat started. [root@satubangau

问题 I am trying to do a batch-insert of a collection of beans. One of the properties of the bean is an ArrayList. The batch update fails with the exception: Can't infer the SQL type to use for an instance of java.util.ArrayList. Use setObject() with an explicit Types value to specify the type to use. I don't know which Postgresql data type to use for the ArrayList to be compatible. Is there a way I can do the batch update of the beans without changing the data type of its properties? The Bean:

问题 I am trying to write a rest api in which I am passing date as a URL parameter. Date formate is dd/MM/yyyy HH:mm ; REST API URL Is public static final String GET_TestDate = "/stay/datecheck?dateCheckIn={dateCheckIn}"; and Rest Method is @RequestMapping(value = HotelRestURIConstants.GET_TestDate, method = RequestMethod.GET) public @ResponseBody String getDate(@PathVariable("dateCheckIn") @DateTimeFormat(iso= DateTimeFormat.ISO.DATE) String dateCheckIn) { logger.info("passing date as a param");