                        课程
                    
                        /后端开发
                        
                            /Java
                        
                        /2小时学会Spring Boot

使用return girlProperties.getCupSize()后浏览器返回一片空白是怎么回事

浏览器结果如图

context-path已经修改，不过还是空白……

浏览器调试：

Could not load the source for http://127.0.0.1:8080/hello.
[Exception... "Component returned failure code: 0x80470002 (NS_BASE_STREAM_CLOSED) [nsIInputStream.available]" nsresult: "0x80470002 (NS_BASE_STREAM_CLOSED)" location: "JS frame :: resource://devtools/shared/base-loader.js -> resource://devtools/shared/DevToolsUtils.js :: onResponse :: line 482" data: no]
Stack: onResponse@resource://devtools/shared/base-loader.js -> resource://devtools/shared/DevToolsUtils.js:482:23
onStopRequest@resource://gre/modules/NetUtil.jsm:131:17
Line: 482, column: 0