lihengming / spring-boot-api-project-seed Goto Github PK

在controller里面使用具体的service对象去调用AbstractService里面通用的方法返回的单条数据或者是列表，无法使用fastjson进行序列化到前端

No qualifying bean of type 'com.xxx.core.Mapper<?>' available: expected single matching bean but found 2: citiesMapper,storesMapper

请问下这个如何解决？

有很多开发者朋友问我有没有类似的前台项目、后台管理项目的种子项目，其实都是类似的，区别在于这些项目需要模版引擎(不建议使用JSP)和静态资源(css、js、img)的支持，稍微调整下即可适用，按照MVC的分层来说的话差异的只是视图层，下面是基于Thymleaf模板引擎的改造步骤，供参考。

1. 加入Thymleaf模板引擎依赖

<dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>

2. 去除以下配置项

spring.mvc.throw-exception-if-no-handler-found=true
spring.resources.add-mappings=false

3. 调整统一异常处理器，增加404、500页面支持

   //统一异常处理
    @Override
    public void configureHandlerExceptionResolvers(List<HandlerExceptionResolver> exceptionResolvers) {
        exceptionResolvers.add(new HandlerExceptionResolver() {
            public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler, Exception e) {
                ModelAndView mv = new ModelAndView();
                Result result = new Result();
                if (handler instanceof HandlerMethod) {
                    HandlerMethod handlerMethod = (HandlerMethod) handler;
                    if (null != handlerMethod.getBean().getClass().getAnnotation(RestController.class)
                            || null != handlerMethod.getMethodAnnotation(ResponseBody.class)) {//JSON视图
                        if (e instanceof ServiceException) {//业务失败的异常，如“账号或密码错误”
                            result.setCode(ResultCode.FAIL).setMessage(e.getMessage());
                            logger.info(e.getMessage());
                        } else if (e instanceof ServletException) {
                            result.setCode(ResultCode.FAIL).setMessage(e.getMessage());
                        } else {
                            result.setCode(ResultCode.INTERNAL_SERVER_ERROR).setMessage("接口 [" + request.getRequestURI() + "] 内部错误，请联系管理员");
                            String message = String.format("接口 [%s] 出现异常，方法：%s.%s，异常摘要：%s",
                                    request.getRequestURI(),
                                    handlerMethod.getBean().getClass().getName(),
                                    handlerMethod.getMethod().getName(),
                                    e.getMessage());
                            logger.error(message, e);
                        }
                        responseResult(response, result);
                    } else {//普通视图
                        if (response.getStatus() == 404) {
                            mv.setViewName("error/404");
                        } else {
                            mv.setViewName("error/500");
                            logger.error(e.getMessage(), e);
                        }
                    }
                } else {
                    mv.setViewName("error/500");
                    logger.error(e.getMessage(), e);
                }
                return mv;
            }
        });
    }

4. 调整项目结构，增加static、templates目录，类似于下面这样

|   |   \---resources
|   |       \---mapper
|   |       |
|   |       \---static
|   |       |   \---css
|   |       |   \---img
|   |       |   \---js
|   |       \---templates
|   |           |   example.html
|   |           |
|   |           \---error
|   |                   404.html
|   |                   500.html
|   |       |   application.properties
|   |       |   application-dev.properties
|   |       |   application-pro.properties
|   |       |   application-test.properties
|   |       |   banner.txt

除了这些外，模板也需要调整，主要是Controller模板，根据自己的需求改一下，这里就不多说了。如果你在做的是后台项目的话，其实除了一些Java模板外还可以封装一些页面、JS代码模板，直接生成，毕竟后台系统大部分以增删改查为主很多管理页面是很类似的。当然，这只是一些基础改造，要想使用它开发前台项目、后台管理项目你还需要集成一些东西，比如通常需要集成Shiro来做权限控制、会话管理等。

注：在使用Spring Boot 开发项目时，如遇到页面、静态资源的修改刷新后不能立即生效的问题的话，你可以参考这篇文章：Spring Boot 静态资源无法热加载的解决方法

应该将userService修改为 ${modelNameLowerCamel}Service

The banner that is printed on start up can be changed by adding a banner.txt file to your classpath, or by setting banner.location to the location of such a file. If the file has an unusual encoding you can set banner.charset (default is UTF-8). In addition to a text file, you can also add a banner.gif, banner.jpg or banner.png image file to your classpath, or set a banner.image.location property. Images will be converted into an ASCII art representation and printed above any text banner.

Spring Boot 允许我们使用自定义的Banner，可以是文本或者图片格式，不过最终都会以ASCII的形式展现出来。你可以通过修改本项目resources目录下的banner.txt内的文本来更改它，下面这三个地址可以帮助你生成ASCII格式的文本。

• http://patorjk.com/software/taag
• http://www.network-science.de/ascii/
• http://www.degraeve.com/img2txt.php

更多关于Banner的信息，可以看看Spring Boot官方文档关于它的介绍，地址：http://docs.spring.io/spring-boot/docs/1.5.5.BUILD-SNAPSHOT/reference/htmlsingle/#boot-features-banner

[ Thread-3] ationConfigEmbeddedWebApplicationContext : Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@7591083d: startup date [Sun Sep 17 17:07:50 CST 2017]; root of context hierarchy

[ Thread-3] o.s.j.e.a.AnnotationMBeanExporter : Unregistering JMX-exposed beans on shutdown
2017-09-17 19:19:20.197 INFO 24527 --- [ Thread-3] o.s.j.e.a.AnnotationMBeanExporter : Unregistering JMX-exposed beans

[ Thread-3] o.s.b.f.support.DisposableBeanAdapter : Invocation of destroy method 'close' failed on bean with name 'dataSource': java.lang.NoClassDefFoundError: com/alibaba/druid/pool/PreparedStatementPool
Exception in thread "Thread-3" java.lang.NoClassDefFoundError: org/apache/catalina/Lifecycle$SingleUse
at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:240)
at org.apache.catalina.startup.Tomcat.stop(Tomcat.java:354)

用的oracle数据库，配置了ID是从sequence生成的，如下。

目前插入正常，返回值是1，应该是记录数。
如果需要返回生成的ID，能支持吗，应该怎么配置？

接口 [/user/list] 出现异常，方法：com.company.project.web.UserController.list，异常摘要：com.company.project.model.User cannot be cast to com.company.project.model.User

java.lang.ClassCastException: com.company.project.model.User cannot be cast to com.company.project.model.User
at com.alibaba.fastjson.serializer.ASMSerializer_3_User.write(Unknown Source) ~[na:na]
at com.alibaba.fastjson.serializer.JSONSerializer.writeWithFieldName(JSONSerializer.java:304) ~[fastjson-1.2.22.jar:na]
at com.alibaba.fastjson.serializer.JSONSerializer.writeWithFieldName(JSONSerializer.java:282) ~[fastjson-1.2.22.jar:na]
at com.alibaba.fastjson.serializer.ASMSerializer_2_PageInfo.write(Unknown Source) ~[na:na]
at com.alibaba.fastjson.serializer.JSONSerializer.writeWithFieldName(JSONSerializer.java:304) ~[fastjson-1.2.22.jar:na]
at com.alibaba.fastjson.serializer.ASMSerializer_1_Result.write(Unknown Source) ~[na:na]
at com.alibaba.fastjson.serializer.JSONSerializer.write(JSONSerializer.java:275) ~[fastjson-1.2.22.jar:na]
at com.alibaba.fastjson.JSON.writeJSONString(JSON.java:781) ~[fastjson-1.2.22.jar:na]
at com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter4.writeInternal(FastJsonHttpMessageConverter4.java:82) ~[fastjson-1.2.22.jar:na]
at org.springframework.http.converter.AbstractGenericHttpMessageConverter.write(AbstractGenericHttpMessageConverter.java:106) ~[spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:231) ~[spring-webmvc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.handleReturnValue(RequestResponseBodyMethodProcessor.java:174) ~[spring-webmvc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:81) ~[spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:113) ~[spring-webmvc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) ~[spring-webmvc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) ~[spring-webmvc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) [spring-webmvc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) [spring-webmvc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) [spring-webmvc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) [spring-webmvc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) [spring-webmvc-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat-embed-websocket-8.5.15.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.15.jar:8.5.15]
at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123) [druid-1.1.0.jar:1.1.0]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:105) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455) [tomcat-embed-core-8.5.15.jar:8.5.15]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.15.jar:8.5.15]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_111]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_111]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.15.jar:8.5.15]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_111]

你好。我想请教一下：http://localhost:8080/sys/user/?page=1&size=10&sign=XXX 每次请求发出之前都要对sign进行生成，由于每次请求不同的参数生成的sign也会不一样的，那这个 工作是在前端生成的sign吗？这样的话，生成签名的密钥 String secret = "Potato";是不是就要暴露在前端啊。还是有其他方法啊

post detail json 格式{"id":1} controller参数id获取null

2017-07-04 00:12:24.154 ERROR 14120 --- [nio-8080-exec-1] c.c.project.configurer.WebMvcConfigurer : 接口 [/user/list] 出现异常，方法：com.company.project.web.UserController.list，异常摘要：null

java.lang.NullPointerException: null
at com.company.project.web.UserController.list(UserController.java:50) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_131]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_131]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_131]

在项目我是下载的spring-boot-api-project-seed进行的一个尝试。在生成的代码以后调用
Service中封装好的T findBy(String fieldName, Object value) throws TooManyResultsException这个方法。就会抛出这个异常。不知道你们有木有遇见
java.lang.ClassCastException: com.company.project.model.UserInfo cannot be cast to com.company.project.model.UserInfo

因为我使用spring-boot-dependencies代替了spring-boot-starter-parent这个parent POM，解决方案见Spring Boot官方文档：

If you are not using the parent POM you can still use the plugin, however, you must additionally add an section:

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <version>1.5.4.RELEASE</version>
            <executions>
                <execution>
                    <goals>
                        <goal>repackage</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

我考虑了下，还是使用spring-boot-starter-parent比较好，提供了很多标准的配置，并且包含spring-boot-dependencies。当然，这样的话你就不能继承你自己的parent POM了，不过一般中小型项目一般都没有自己的parent POM，所以应该没什么关系，真的需要修改为自己的parent POM的话，也很简单，删除spring-boot-starter-parent 改为spring-boot-dependencies即可，详细说明见官方文档说明。

DruidDataSourceAutoConfigure的dataSource用到了Environment,只能读取properties，没法读取yml

异常：
接口 [/user/detail] 出现异常，方法：com.XXX.web.UserController.detail，异常摘要：nested exception is org.apache.ibatis.type.TypeException: Could not set parameters for mapping: ParameterMapping{property='id', mode=IN, javaType=class java.math.BigDecimal, jdbcType=null, numericScale=null, resultMapId='null', jdbcTypeName='null', expression='null'}. Cause: org.apache.ibatis.type.TypeException: Error setting non null for parameter #1 with JdbcType null . Try setting a different JdbcType for this parameter or a different configuration property. Cause: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.math.BigDecimal

环境：jdk1.8，intellij ide, oracle10

model里面生成的主键类型是BigDecimal ：

@Id
    @Column(name = "ID")
    @GeneratedValue(strategy = GenerationType.IDENTITY, generator = "select USERS_SEQ.nextval from dual")
    private BigDecimal id;
 

而controller里面的参数却是Integer

@GetMapping("/detail")
    public Result detail(@RequestParam Integer id) {
        User user = userService.findById(id);
        return ResultGenerator.genSuccessResult(user);
    }

数据库主键ID的类型是：NUMBER(38)

请问这个应该怎么处理呢？

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactoryBean' defined in class path resource [com/company/project/configurer/MybatisConfigurer.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactoryBean' threw exception; nested exception is java.io.FileNotFoundException: class path resource [mapper/] cannot be resolved to URL because it does not exist
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) ~[spring-context-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) ~[spring-context-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.4.RELEASE.jar:1.5.4.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.4.RELEASE.jar:1.5.4.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.4.RELEASE.jar:1.5.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.4.RELEASE.jar:1.5.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.4.RELEASE.jar:1.5.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.4.RELEASE.jar:1.5.4.RELEASE]
at com.company.project.Application.main(Application.java:9) [classes/:na]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactoryBean' threw exception; nested exception is java.io.FileNotFoundException: class path resource [mapper/] cannot be resolved to URL because it does not exist
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE]
... 18 common frames omitted

@RestController
@RequestMapping("/person")
public class PersonController {
@resource
private PersonService personService;

@PostMapping("/add")
public Result add(Person person) {
    personService.save(person);
    System.out.println(1/0);
    return ResultGenerator.genSuccessResult();
}

}

public interface PersonService extends Service {

}

@service
@transactional
public class PersonServiceImpl extends AbstractService implements PersonService {

}

@lihengming 怎么做用户权限验证？

这样做有什么优点吗？
去掉这段配置会导致什么？

老铁，快速开始 中 CodeGenerator.mian() 你手误啦
CodeGenerator.main()

spring boot这种简洁代码和lombok更配哦！

condition.andCondition("");
这个方法怎么使用的 入参

实际会配上多数据源的情况，这个项目要怎么改造支持呢？有没有方案？

前段时间发现了这个问题，自己采用相应的starter测试了一下，没有发现什么问题，但是实际项目中还没有用到，所以无法确认是否有其他限制，可否说一下没有采用相应starter的意图和存在的限制么？多谢

registry.addMapping("/**");
向这样配置之后，get，post可以请求，但是put，delete方法请求不到。

CodeGenerator.mian() => CodeGenerator.main()

在Intellij IDEA里面运行的时候，会出现如下错误：
错误: 找不到或无法加载主类 CodeGenerator

我是新手，求指教

@PostMapping("/detail")
@PostMapping("/list")

一般在建表的时候都会加上前缀 t_ ,针对这个问题应该怎么解决。

有相关的交流群吗？建议有一个，有些问题，想请教。感谢了！

请问 集成mybatis之后应该如何在控制台输出sql语句 。

在pom.xml添加sqlserver的jar包依赖，然后再/api/src/main/resources/application-dev.properties中修改数据库连接设置
在/api/src/test/java/CodeGenerator.java中修改数据库连接设置

期待中。。。

    @PostMapping("/detail")
    public Result detail( @RequestBody User user)
    {
        System.out.println(JSONObject.toJSONString(user));
        Integer id = user.getId();
        User user1 = userService.findById(id);
        return ResultGenerator.genSuccessResult(user1);
    }

Controller写法如上
{
"user":{
"id":12
}
}
PostMan请求如上

Controller这边接收到的user输出为{}，空对象
请问这种接收json格式的，应该怎么写呢

在mysql 5.6
执行sql会报错
错误代码： 1294
Invalid ON UPDATE clause for 'register_date' column

把
register_date datetime DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP,
替换为
register_date DATETIME NOT NULL,
即可

在Mybatis & Mapper & PageHelper 配置类 MybatisConfigurer 里面，29行有一个报错：

Could not autowire. There is more than one bean of 'DataSource' type.
Beans:
dataSource   (DataSourceConfiguration.class) dataSource   (DataSourceConfiguration.class)
less... (Ctrl+F1)
Checks autowiring problems in a bean class.

环境
Intellij Ide 2017.2
jdk1.8

建议加上Swagger2

处理并发数据问题，需要添加乐观锁，你这个没有啊，需要的话这个通用Mapper是怎么添加的。

我把CodeGenerator.java 放到 src/main/java 里面之后，就不能执行了，放在src/test/java 下面就可以，这是为什么呢？

public static void genCode(String... tableNames) {} // <--- 1

public static void genCode(String tableName, String modelName) {} // <--- 2

当要同时生成两个表的代码时，这两个方法存在冲突。建议将2 重命名。

希望大哥 能把兼容做一下。service 生成的是空的

有前端WEB登录、权限管理之类的。

项目本身就是Web项目，已经包含了org.springframework.http.HttpStatus类，可以直接使用，而且状态非常全。没必要重新定义吧。

我在V1.2修复了一些小问题并且做了一些优化，顺便在此感谢大家的支持:pray::pray:

RT

从github中复制下来之后，在intellij中多个类报错，全是注解不存在，有reimport