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springboot 编译jsp页面的问题

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springboot

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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maven打包的war项目，tomcat和jetty部署没有问题，resin报错

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1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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使用原生JDBC连接数据库是否需要设计成三层架构？

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JDBC

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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压测完毕之后访问页面出现这个提示

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压测

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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spring boot 使用thymeleaf显示页面时有问题

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springboot

class="cursor-pointer"> 详细描述

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mybatis设计时出现问题，无法处理：

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mybatis

class="cursor-pointer"> 详细描述

Caused by: org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\JAVA_TEST\Spring-boot-web\target\classes\mapper\ModuleMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Mapped Statements collection already contains value for com.fangyuyang.dao.ModuleMapper.countAll
	at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:523)
	at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:380)
	at org.mybatis.spring.SqlSessionFactoryBean.getObject(SqlSessionFactoryBean.java:547)
	at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration.sqlSessionFactory(MybatisAutoConfiguration.java:153)
	at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration$$EnhancerBySpringCGLIB$$bdda318b.CGLIB$sqlSessionFactory$0(<generated>)
	at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration$$EnhancerBySpringCGLIB$$bdda318b$$FastClassBySpringCGLIB$$ed20fcf5.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
	at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:358)
	at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration$$EnhancerBySpringCGLIB$$bdda318b.sqlSessionFactory(<generated>)
	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)
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162)
	... 61 common frames omitted
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Mapped Statements collection already contains value for com.fangyuyang.dao.ModuleMapper.countAll
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:120)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:92)
	at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:521)
	... 74 common frames omitted
Caused by: java.lang.IllegalArgumentException: Mapped Statements collection already contains value for com.fangyuyang.dao.ModuleMapper.countAll
	at org.apache.ibatis.session.Configuration$StrictMap.put(Configuration.java:872)
	at org.apache.ibatis.session.Configuration$StrictMap.put(Configuration.java:844)
	at org.apache.ibatis.session.Configuration.addMappedStatement(Configuration.java:668)
	at org.apache.ibatis.builder.MapperBuilderAssistant.addMappedStatement(MapperBuilderAssistant.java:302)
	at org.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:109)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:135)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:128)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:118)
	... 76 common frames omitted

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RESTful接口 POST时body的from-data提交表单无效

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rest

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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在做SSM的时候，报500错误

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rest

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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jsp页面传递的参数不解析，显示${..}

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SSM

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 源码

自动生成的web.xml
<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>Archetype Created Web Application</display-name>
</web-app>

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为什么构造方法是整个对象构造过程的最后一步？

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spring

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图