项目框架 spring boot 2.0 我写了 父类 BaseController 里面自动注入 request 和 response
public class BaseController{
@Autowired
public HttpServletRequest request;
@Autowired
public HttpServletResponse response;
}
IndexController 都继承 BaseController
public class IndexController extends BaseController {
@RequestMapping("/index")
public String index(Model model) {
return "index";
}
@RequestMapping("login")
public String login() throws ServletException, IOException {
request.getRequestDispatcher("/admin/index").forward(request, response);
return null;
}
index 页面,没有任何数据操作，纯一个静态页面 <!DOCTYPE html><html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="renderer" content="webkit">
<title>500</title>
</head>
<body style="background: #FFFFFF; color: red; font-size: 40em; text-align: center">
<p>
TEST
</p>
</body></html>
访问 http://localhost:9090/admin/login出现如下错误，循环引用导致内存溢出java.lang.StackOverflowError: null
at org.springframework.web.context.support.WebApplicationContextUtils.currentRequestAttributes(WebApplicationContextUtils.java:312)
at org.springframework.web.context.support.WebApplicationContextUtils.access$400(WebApplicationContextUtils.java:65)
at org.springframework.web.context.support.WebApplicationContextUtils$RequestObjectFactory.getObject(WebApplicationContextUtils.java:328)
at org.springframework.web.context.support.WebApplicationContextUtils$RequestObjectFactory.getObject(WebApplicationContextUtils.java:323)
at org.springframework.beans.factory.support.AutowireUtils$ObjectFactoryDelegatingInvocationHandler.invoke(AutowireUtils.java:305)
at com.sun.proxy.$Proxy100.setAttribute(Unknown Source)
at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:304)
at sun.reflect.GeneratedMethodAccessor95.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.beans.factory.support.AutowireUtils$ObjectFactoryDelegatingInvocationHandler.invoke(AutowireUtils.java:305)
at com.sun.proxy.$Proxy100.setAttribute(Unknown Source)
at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:304)
at sun.reflect.GeneratedMethodAccessor95.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.beans.factory.support.AutowireUtils$ObjectFactoryDelegatingInvocationHandler.invoke(AutowireUtils.java:305)
at com.sun.proxy.$Proxy100.setAttribute(Unknown Source)
at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:304)
at sun.reflect.GeneratedMethodAccessor95.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.beans.factory.support.AutowireUtils$ObjectFactoryDelegatingInvocationHandler.invoke(AutowireUtils.java:305)
at com.sun.proxy.$Proxy100.setAttribute(Unknown Source)
at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:304)
at sun.reflect.GeneratedMethodAccessor95.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
1.注意看我的login 就使用request转发到首页(注意，此时request 和 response 是父类的BaseController)
注意问题不是地址循环跳引发的问题
3.使用方法注入request 和 response就不会有问题@RequestMapping("login")
public String login(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.getRequestDispatcher("/admin/index").forward(request, response);
return null;
}
有没有大佬解释一波。
5 回答
芜湖不芜
TA贡献1796条经验 获得超7个赞
你先试试接口，
@RequestMapping("cc")
@ResponseBody
public Object z() {
String parameter = request.getParameter("zz");
System.out.println(parameter);
return "你好";
}springboot 2.0.6 没有问题，先一步一步的排查，世界是科学的
慕田峪4524236
TA贡献1875条经验 获得超5个赞
估计你这个 request.getRequestDispatcher("/admin/index").forward(request, response); forward到admin之后又redirect回login了吧？
交互式爱情
TA贡献1712条经验 获得超3个赞
你这种写法相当于：@RequestMapping("/index")
public String index(Model model) {
//重点
request.getRequestDispatcher("/admin/index").forward(request, response);
return "index";}
@RequestMapping("login")
public String login() throws ServletException, IOException {
request.getRequestDispatcher("/admin/index").forward(request, response);
return null;}
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