分母为0，除0报错【java.lang.ArithmeticException: / by zero】

最新推荐文章于 2025-05-07 11:17:33 发布
最新推荐文章于 2025-05-07 11:17:33 发布
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本文链接：https://blog.youkuaiyun.com/Dragon_Python/article/details/125077809
本文探讨了Java中ArithmeticException: /byzero错误，聚焦于如何通过数据校验避免在计算五大业务总收入环比时遇到除数为零的情况。作者分享了通过检查历史数据和使用条件语句来确保安全除法的方法。

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java.lang.ArithmeticException: / by zero
	at java.math.BigDecimal.divideAndRound(BigDecimal.java:4106)
	at java.math.BigDecimal.divide(BigDecimal.java:5198)
	at java.math.BigDecimal.divide(BigDecimal.java:1561)
	at java.math.BigDecimal.divide(BigDecimal.java:1591)
	at com.hollycrm.product.bscreen.service.impl.Product.HomeServiceImpl.getTongRate(HomeServiceImpl.java:328)
	at com.hollycrm.product.bscreen.service.impl.Product.HomeServiceImpl.getHeaderAreaIncome(HomeServiceImpl.java:56)
	at com.hollycrm.product.bscreen.service.impl.Product.HomeServiceImpl$$FastClassBySpringCGLIB$$438b9dd6.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:783)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753)
	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
	at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:753)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:698)
	at com.hollycrm.product.bscreen.service.impl.Product.HomeServiceImpl$$EnhancerBySpringCGLIB$$ecdfdb2b.getHeaderAreaIncome(<generated>)
	at com.hollycrm.product.bscreen.controller.product.HomeController.getHeaderAreaIncome(HomeController.java:35)
	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.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1067)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:655)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:111)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:111)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:124)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at com.hollycrm.common.filter.RepeatableFilter.doFilter(RepeatableFilter.java:39)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:327)
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:115)
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:81)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:121)
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:126)
	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:81)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:105)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:149)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at com.hollycrm.framework.security.filter.JwtAuthenticationTokenFilter.doFilterInternal(JwtAuthenticationTokenFilter.java:42)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:111)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:103)
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:89)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:91)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90)
	at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:75)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:110)
	at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:80)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:55)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:211)
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:183)
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:540)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:895)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1732)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
	at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:748)
![在这里插入图片描述](https://img-blog.csdnimg.cn/636615890ae043eda2c593a364131b4c.png)

  String totalIncome = homeMapper.getBusinessTotalIncome(month);
   BigDecimal dTotalIncome = new BigDecimal(totalIncome);
        //五大业务总收入-环比

除法报错，说明计算的时候，分母为0，解决办法如下，

第一:数据问题，造数据。

第二:判空 				dTongIncome.equals(BigDecimal.ZERO)
 String tongRate = "";
        //五大业务上一年同月账期总收入
        BigDecimal dTongIncome = new BigDecimal(0);

        String tongIncome = homeMapper.getTongBusinessTotalIncome();
        if (StringUtils.isNotEmpty(tongIncome)) {
            dTongIncome = dTongIncome.add(new BigDecimal(tongIncome));
        }
        BigDecimal tongDifferentValue = dTotalIncome.subtract(dTongIncome);
        if (!dTongIncome.equals(BigDecimal.ZERO)) {
            tongRate = String.valueOf(tongDifferentValue.divide(dTongIncome, 2, RoundingMode.HALF_UP));
        }
HH_JavaEE
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【项目实战】java.lang.ArithmeticException: / by zero 异常处理
本本本添哥
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(BigDecimal.ZERO).compareTo(s) == 0，可以比较是否等于0，返回true则等于0，返回false，则不等于0。当定义的 ”除数 ” 为整形时候（short int long）会抛出此异常，除数为整形时不可以为零。在项目中，对某些金额数据进行规则校验时，会出现ArithmeticException异常。
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报错:java.lang.ArithmeticException：divide by zero
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分享人生
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除数不能为零，请务必检查代码是否有机会出现除数为零的情况。知道结果的我贼尴尬~~
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就知道这个判断有问题了，后来发现，BigDecimal的equal方法，还判断了精度，0和0.0并不相等。所以把全局的类似判断，全部修改，使用compare进行处理。若值为 0，则返回 0；若值小于 0，则返回 -1；若值大于 0，则返回 1。我要处理一个任务完成率的计算，任务完成率pct = 实际值 real / 任务值 task。因为刚开始测试的时候没有出现问题，所以一直这样用着，昨天突然发现系统报表一直在报错。进入计算前，我需要判断task是否为空，或者为0，防止除法出错。之前使用了equal方法。
java.lang.ArithmeticException: / by zero 异常处理
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当定义的 ”被除数 ” 为整形时候（short int long）会抛出此异常，被除数为整形时不可以为零。
关于Java报错：java.lang.ArithmeticException：divide by zero
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我们在进行除数运算时，是不是很容易忽略除数为0的情况 若除数为0，则报java.lang.ArithmeticException：divide by zero 因此除数不能为零，请务必检查代码是否有机会出现除数为零的情况 ...
关于java.lang.ArithmeticException: divide by zero的异常
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该异常最有可能出现在代码运行时分母为0 在不确定分母是否0的前提下，我们需要对该分母进行判断。 还有可能出现的情况是 数据超出限制 出现情况例如： long类型的数据转换为int类型出现，超过int所能存储的最大值 转载于:https://www.cnblogs.com/xBig/p/4211429.html...
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问题 D: D:分数类的异常处理 时间限制: 1.000 Sec  内存限制: 128 MB 提交: 249  解决: 76 [提交] [状态] [讨论版] [命题人:外部导入]题目描述  根据已经编写好的Fraction类及输出案例，  请编写Main类，建立两个分数对象的数组f,采用Scanner类的nextInt方法，依次输入两个分数的分子和分母，  处理可能的异常输入情形：分子或分母不是整数（输出：java.util.InputMismatchException），分母是零（输出：java.lang.ArithmeticException: / by zero）。  求出并打印：((f[0]-f[1])/f[1] + f[0] ) * f[1]，然后对以上结果约分，约分后再打印。 class Fraction { int numerator; int denominator; int gcd(int m, int n) { int mod = m % n; while(mod != 0) { m = n; n = mod; mod = m % n; } return n; } void print() { System.out.println(this.numerator + "/" + this.denominator); } void setFraction(int n, int d) { if(d == 0) throw new ArithmeticException("/ by zero"); this.numerator = n; this.denominator = d; } boolean equals(Fraction f) { return (this.denominator == f.denominator) && (this.numerator == f.numerator); } Fraction add(Fraction f) { Fraction r = new Fraction(); int n; int d; int g = gcd(this.denominator, f.denominator); d = f.denominator * this.denominator / g; n = this.numerator * f.denominator / g + f.numerator * this.denominator / g; r.setFraction(n, d); return r; } Fraction sub(Fraction f) { Fraction r = new Fraction(); int n; int d; int g = gcd(this.denominator, f.denominator); d = f.denominator * this.denominator / g; n = this.numerator * f.denominator / g - f.numerator * this.denominator / g; r.setFraction(n, d); return r; } Fraction mul(Fraction f) { Fraction r = new Fraction(); int n = this.numerator * f.numerator; int d = this.denominator * f.denominator; r.setFraction(n, d); return r; } Fraction div(Fraction f) { Fraction r = new Fraction(); int n = this.numerator * f.denominator; int d = this.denominator * f.numerator ; r.setFraction(n, d); return r; } Fraction simplify() { int g = gcd(this.numerator, this.denominator); this.denominator /= g; this.numerator /= g; if(this.denominator < 0) { this.denominator *= -1; this.num
05-24
因此，你需要在计算中使用 try-catch 语句来捕获可能出现的 ArithmeticException 异常，并在出现异常时输出 "/ by zero"。 最后，你还需要对计算结果进行约分。Fraction 类中已经定义了 simplify() 方法，可以直接...
用java语言编写一个计算器类，求实现加、减、乘、除、求平方根、求绝对 说明，设计求除法、求倒数的方法，可在方法中不检测x是否为0，测试 值、求倒数1/x方法，并用JUnit进行对象类的单元测试。参阅
09-14
throw new ArithmeticException("Division by zero is not allowed."); } } // 使用Math.sqrt()计算平方根，返回double类型防止向下取整 public double sqrt(double a) { return Math.sqrt(a); } // 求...
java 除0发生的算术异常（ArithmeticException）
06-18
java 除0发生的算术异常（ArithmeticException） java 除0发生的算术异常（ArithmeticException）
java.lang.ArithmeticException：divide by zero
Fury的博客
01-28 1616
今天测试点出个异常，看log还是第一次见，挺有意思记录一下。 java.lang.ArithmeticException：divide by zero 除数不能为零，请务必检查代码是否有机会出现除数为零的情况。 简单来说就是分母为0。还好不是我写出来的，溜了溜了~ ...
java.lang.ArithmeticException: divide by zero
小牧在一直在学习,在前进的道路上大家一起学习，进步。
11-24 990
出现该问题大致就是代码中的计算,分母为0了,看下自己设置的分母为啥为0 也就找到问题了,
处理异常BigDecimal.divide 出现的异常:java.lang.ArithmeticException: / by zero
weixin_43833692的博客
01-26 3835
处理异常BigDecimal.divide 出现的异常:java.lang.ArithmeticException: / by zero BigDecimal a=BigDecimal.ZERO; BigDecimal b=BigDecimal.ZERO; BigDecimal divide = a.divide(b, RoundingMode.HALF_UP); 执行上面代码，会出现java.lang.ArithmeticException: / by z
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