第一个HELLOWORLD
1:创建项目,导入jar包。
2:写web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <!-- 配置 DispatcherServlet --> <servlet> <servlet-name>springDispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 配置 DispatcherServlet 的一个初始化参数: 配置 SpringMVC 配置文件的位置和名称 --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springDispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
不想写
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<!--
实际上也可以不通过 contextConfigLocation 来配置 SpringMVC 的配置文件, 而使用默认的.
默认的配置文件为: /WEB-INF/<servlet-name>-servlet.xml
springDispatcherServlet-servlet.xml
-->
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAo0AAADoCAIAAAAFaUnaAAAgAElEQVR4nO2d728UR56H/Rfk9fFiX9w7VvsKrRTp5h0rBQL4RO7e+NZ5M6cofnGSiRCnoLOF1qeDTE63c2dbsCcHX25EggWyyQsw9o4lY5EYZ+KEeIcVQeAz0Z1JZrDHJrHBoxXR1r2o7ur62T+mp2fK7s+jFprpqequrqmup79VZabj3e6h+Z2Foe6h+Z36i536i536/NDp8RX6emHo9MTKTn1l4vS7E49f7NRfrEy82909dMdJia252/+tPml7Gdq0PR4/3f3uxML4aa8dsubnvF2ZeNdppQtD3afHV+ov7gx18wnSt+2SBvN4/DTtUugXujB0emLc7WS43qY+P9Td7XRHGnZXt2P3V8O+EW5bmXh3aIHfszJxulvYI96PFm+JVj614crEaa7zeTx+mjZSt1ZpZd7RNuTuBnqtjhd3hrqHhsTjiZ5m/SOV9ARUndRm972d1DY/xJrcY4OnH4+fdhu3Z+v6C/Vtyrbd1mDcL3Rl4l23q1I8zfdiu0YMu+2rCfa06KFd9nUkWPl3hrq7T797OsiAuoeeONLscL4Aczw9PtQ9dGdhSLh/Ho+f7hYftbA1YbP73k5kk4ZqtM+eLPbSB9Bcp5+2bfc0GDfgGFp4sVOfH/K6uXkvsO6mLWFl4rQ+CtlVHY61X41bvazDZ7GgU/8v9JKuw9MvvObqVZraSunjJqtMVqXxPY3Nis3aexubnRsajLUbvhpUfhM3eNqibe81L2yJbmgw1m74alD5TdzgaYu2vde8sCW6ocFYu+GrQeU3cYOnsWHDhg0bNns3eBobNmzYsGGzd4OnsWHDhg0bNnu3jkfL/4MNGzZs2LBhs3PrIAAAAACwFXgaAAAAsBd4GgAAALAXeBoAAACwF3gaAAAAsJeOhwAAAACwFcTTAAAAgL3A0wAAAIC9wNMAAACAvaTX0/l8PpvNtrsUAAAAgB/N8fTk5GQ+nyeE7OzsdHd312o1bbJarfbLX/5S/bRWq+3bt6+jo+OVV14pl8t0Zz6f37dvn+lQ8dEWhpZkcnKSBF0LpVwuHz9+fGdnhxaYVkKtVtu/fz+7EJAo5XL5Zz/72R6rbXZRk5OTHToOHjx49uxZ9nbfvn2dnZ1Sgp2dHVP2jo4O2sj3BnuyDTSXnZ2dgwcP7qUvPVUk7mmfnoJ1FrVarbu7e2Nj4/jx4+fOndP2StSFTSGfz/MH37dv36VLl9hrVnjpWsrl8iuvvKJ2c5OTk9lsllnf9CzCnz2bzdLbhi8DnyWbzdL6bC7ZbJYfQsjn83zF0rcbGxvagmWz2YS+jpg01kfT+uefCyn0QY1eoFRdRKwx9nDZ0dGRxMAMva5z586xg+fzebWf1e6s1Wp9fX3srdSSd3Z2jh8/zi5caorsIVXdybeB5C68AWzzNG0b7bqFtfemv6eTbsytpAW9HOuftd3I5OQkzSvdRHG6zVieZje81tPZbHZycpJqjKaXHMa6GN7TLbjZ+ELSIJgvJCub1B9JofPk5CTfuFVUBxAu/va/baSetFmwBkR0LYw2PlPB+EcHVWC7DnqZmUxG6kzp986CUem5jdUMffrkn9WS6JSJ+xQotUb2re3s7PT399MvlG+f9L5jB5HuO74ZELGxMeFpd2qPBnhoI6HDG0k0iTC3sE/BtB1O/MbcWLCeUIjfgl5O8nRPTw9/Q0mebsoFyp7e2dkpFos//fRTmMwmTz969Ig9Tob0ND/uzTwavkeIVGzidmqlUumdd96RCslgZy+Xy++8847qabUeAs9Ln11IiDaqLZJKpAvnO1x6dZ2dnaw89BLCtOCQU/tRv5RWQi/z3Llz+/fvlwLNc+fO0duMnwQhhJTLZZpY2h/+jOFrg/URzNOs8vnGxneptJXS17S5sqNJ4Z3Um0utl3Vk6k52tPCetrkNJEr4IbGm38Kms2jv68Yac8iDNyuXbb2c5Onx8fGDBw+yjK3w9O9///uBgYGPP/44TKXwnqZP+q+++uqrr77KP79EHfculUrU9Kx+tSN7DRdbGoug9PT08G9ZN+3vaXUYUEIa6OBvJO1XyLcw/nRNuXDppEwAtC0yCQW24PCNL1LZCDeGQaNYeqJLly6xQQv+EYfuP3jwYKlUYvrcv38/mzfhvcKeApmD2VXwdya9wehdR2uef6ZmdSXFoyGJWhv01D7xNN+SaYM0zT2Vy+VMJsMP5PBVlKinbW4DNPFHH31E57PoIATLSE/B99r805t0fO3XF9LTTb+FiTiOzd+2ak36NGb+IGxgSa1hPpmpisLkamUVxezl1GR0VlSq0gQ9/dNPP3388cfhnecz7k2JOu5NPV2r1VjGMJ6OVGxWmO7ubjZOSM/FByKstPTqTPG0tGqMD2vUM7LLlx4XWDOSngQDe8OoF86aLHUAuyhWA9qCkYbmpyOVje9lKGwIke5ko9DSfinMlWpSWhh48OBB6RaSDkv3sAvU3tiNebqBJkp84+nJyUkqbPYsKz0m8s8f9CCs0UqPjMmNe9vcBvi1CLT2pN5c7XDDTzyH93TTb2G+R2IlN9WkqTFLV8rSa2uYvzu0Zw/M1eIqitnLaXXOFj5PGuan48yDaOan//SnP73//vsDAwO3b9/2z9xET7OnXRZP79+//xe/+EXIeDpSsbXryFRP89+uydOm0QLtSnX+CIFtNPxYevgLZ2VgSwHYWQIfJKW4M+RS/PBlo22AH4mRSiL1ONrhaL6DYC3Tf+qIhU3sI3V+i97qTCGNeTpSbRBueQeVNN+6aC319fW9+eab/N3Hw9819Aj83ceP6fG9CT/zre5k31Sk+Wlr2wCfWPuavVDNLZVZraVIS0Gbewtrn9hMNWlqzJPKIgZmXLWGpadY9eyBuVpcRZF6OfUr1h6Hvqa37W6Kp2lkaTIZRRtPHz9+PJPJsPp98803mxtP07vu0aNHb7zxxhtvvFGr1Vi8wnuaPWFoPU1HR7PZLB+XE7eJrK6uskd1dl41nva5roTiaXrYubk5di3ZbHZ8fNx/QJ4oI59h/vCsgQhyh1v30RpPs51dXV2sm+OzUKXxYgt5+XFqg+9Z+CuVpkJoc52cnOzr6+OXNNLLYd0HHxkfP36cH9gnhidCn8fE5OJpdurWtIFATxO32bP+IfwjWnLxdOAtrC2kqSZNjVn1ND1+GE+rZ4/padt6OZPv6eg3W1aWoKcbnp9WPc1CYVM8TVyX03/p0ain+dpp+vw0a3Dd3d2rq6vd3d1vv/02PSPvadZF+sTThBs/n+Qmt7Sn1o4I8QnK4vy0NAYY88IZ2Wy2p6eHf2zs7OxkjxpNjKcjla1cLt+6dYsofTE/PSwNULOMPn104Lg3cUMifkiQ72jol0IfHFlp8/m8tAgjsFOOVBuscbLAjvU7TMCE87R6dtZ61dBZ+u4S9bTNbSCMp8vl8muvvfbaa6+xj9iharXapUuXTNeS0Pw0O7jPLVwTl4b19fWxGlNrkhgaszrurVaa1rjas8f0tG29nE9cnuf+YCRBT+80tN6bjct1dXVJf/LEp1fv8DwH8/RBZZ1X4KVGKjYrDP3aeAEzT/OdNS1e2fD301I8TZk0rNaW1ntLI5m8p01HiH/hk+KfYfBTR6aCEXHmJuSgd9SysVPwc0hsiR87aaQ+mnB/+K5dR0YPwstMO+Knhgj8QFHTv6lJd0aZnpc2S2k0j68x6UZjV8c/7dGbdFKcLCQJe9rmNhDG05Le+EP53wUJrfem+N/CfCE7xJV3ak3yB5Qac828jkytYd5P6tnD5GplFcXs5Xw8bQoGYhLr76e13QTbqf0DYmmNNJuQpv/TiLZqQs5Ph4d9SfxaA/oR7RD5cQJeoqa/y1IXfmuvnYRexe3TS6aHJrZyRvhxy/ZCHw1pa8y7a7k7uIVOdK2iGk+zDveg+1+1TLqLUSVtTHIrp6wlzW0AAEZ6/3/vdpEP8cfHkRah7FWa0kfzEzG10It1gSWgDQBA4GlgLc2KpfhROHTQuwu0AQAIPA0AAADYDDwNAAAA2As8DQAAANgLPA0AAADYS8dDAAAAANgK4mkAAADAXuBpAAAAwF7gaQAAAMBe4GkAAADAXuBpAAAAwF7gaQAAAMBe4GkAAADAXhL0dL1eT+7goIlsbW395je/2draandB0s53333X7iKkAtRza0hbPSd3vfB02tna2vr1r389MjLy9ttvQ9XtJW39WrtAPbeGtNUzPA0SgUr6+vXrhJCHDx9C1e0lbf1au0A9t4a01TM8DZoPL2kKVN1e0tavtQvUc2tIWz3D06D5bG1tzc3NSTvpfyfbjuKA1PVr7QL13BrSVs/wNAB7n7T1a+0C9dwa0lbP8DQAe5+09WvtAvXcGtJWz/A0AHuftPVr7QL13BrSVs+p9fT9fHZovGL+vDJ3ItvXmb1SIqQ00pe/G/uEALQP832+Nn7GuxFCNfW7V07cWJN3OveLul0puUm8gztHuJ/nUu6NW8xYz3evdLodTmmEVTjXC929IlfdmbnVu1c6R+4TsjZ+xqtGQMJ5a/XGUJjG3HlmbrUpZUqSdHpa6CDYRnuf1RtDQv9SmTuRxU0CdjfG+7wyd+LM3PjI0HiFtXzOE0T0x8h9ImhGPM7IfWWvJxj54Nm+Ezfm8u6dtWcehX3609UbQ7RK3Qq8n8/2nbhxf9WrzPtOhTh6Zi/gaRl4ullY6mnaX8jfX2XuhPBtsRtjbfyMXucA7CJM9/nqjaETN9ZKI0P5Ef7x9H5ee4+M3Nc841KjBHma6OPpFHmaoX/QIQSeDg883Sxs9LTySEsIkb4qVczCHbJnOhSQKgz3OQ3p1sSR2L5O7ZRQZe7EyH3qdbpDuBfCeVp82E3LuDd/4drtxI37ajzQme3Lj8DTehqtZ6fpes3Y6fzXxs9Y3QLT5WkOJ2IojbgBgfypE1iMu4PhJ26sKWE3ALsD7X2+emPoxBkpnh4ar3D65G+NytyJkbnxM+54uDix3ej8dKriafZUpNQthXUviKeDCDduYWpUXsPzgjS75zdT62nDADjFmZPzuiE+jABg16GPP27Mldxxb9rUV28MOc2+suY8j4oCPnHjvuuM+3n+mbXBeDoVnnZjZW+qPn9XO/Hf5wV5QmXC0zIhvLU2fkYbg4mdOTeYaojZrCCNnjYNj7hf3tr4yJX8mSsl2hPdvdLpDPfdt3xsBAATgfPTNIzmllK6D6ksyHNNTLPIT64Nzk+nYtxbQj8/zbvZe+1WEYbxRILr+e6VzpH7mqqWxkSFSU/dsgw7SJenqaHpWJ/8mfvXJq6S2YKaKyXvESzor7kAsJIQniaEONHziRtr3rC2Zq5HN4cd5Gn14fjEyJUTXChjZ/8YFd94OnjelBFqDVSKCfKW21ErzVI2t7iOjC5gamZBm0S6PE3RD2K7ni6NXCk5/Yu3uEBadxDn7AC0Hn9PE0KccULub7EcT/CTpk6Pdj+vRngh4mnnLZsI5CLIve1pgbtXOs8MaadC/ZZBIZ4WCVwHwJrT6o0hv9FsrPdO6LikGZ4OeqqVJ4QwPw12NSE8TQhxJ02l5WOcKrxVHdx/3CEkM64j49ad3b3SOTIX+f9X2Q349ae0bvlnHfPCJcTT/vj+fzJyWyqNmKsank7ouCTheJoQInjaXe6B2wbsXoI9rRqaIiyIlUZouaU6Ica9hTuIm2ZS//px9+I37q3xAZt+vpIPGhvHMB6P8e+yTNKlz5FeE/XWRuyKACyNngYgbaTt/0NuF6jn1pC2eoanAdj7pK1faxeo59aQtnqGpwHY+6StX2sXqOfWkLZ6hqcB2PukrV9rF6jn1pC2eoanAdj7pK1faxeo59aQtnqGpwHY+6StX2sXqOfWkLZ6hqcB2PukrV9rF6jn1pC2eoanAdj7pK1faxeo59aQtnqGpwEAAIA0Ak8DAAAA9gJPAwAAAPYCTwMAAAD2Ak8DAAAA9gJPAwAAAPYCTwMAAAD2Ak8DAAAA9mK1p7fKf/3jHzp/XOr8Yanzh687n9099uzusWdfHdv88ujml0c3Fo/+cO8fmlJUAAAAwE6s9vSPf+gk6x+R9UtkvUDW/pus/RdZGyVPPyBPR0j1P0n1d7UvjjSlqAAAAICd2O3ppU4fSZPq+VoJngYAALCXsdrTPyx1+kiaVIbX9Z6e6unomSKELA9mOjKDy86rnqmYxQEApIRqMddbKBs+LBdyxSr/1pyUVIs584cAhMJuT3/d6SNpUhla//x1XT54GuwtyoVeB14QbK9gDbpf2mXcL/hISaA/r5hRl6ZazPUyfHQnH5cdy0dtUi5TJcSnXDAck2naeQFPg4Sx2tPP7h7zkTSp/Mfagq+nPeBpsHvhwrdywXVYtZjrZbrgd/b2Fgo6w9DPpP3VYi5XrBoyas8rZdSnMSpOKIt0Os9oytlMV6GthAbhHy300DO5V+5du+Rp78FFD7QNomK/p42SJt//OzwNUoZrQCEOlgdpNZqsFnO5YlHeLyc0+1X6RJvQ2+kbYYY4nekD6Sp8K6ExNOGvOMrtnUbnY7dgVc3Th7gfgPDY7emvjvlImnz/27U7h3X5+HFvamf6aqqnwwHOBrsSFjWKJgyyqCOXQC37idPnfHIaftjbT52m05UFE7MkylX4VkKDKKIWNV0uONfkhdWapxIu6nePVy709vbmCmWIGkTHak9vfnnUR9J/fpJ7On/4zy+3lXx6T3t2nuqBqcHuo1rM8SYM7Wn2Vt0v+UWvOu68poxqGm+3WZ7y6Vy/cwGoMLAtXYV/JTQKJ2Dtu0IhVygLOsf8NEgY6z1tkDT5/t+effV3tdLxZ3/8RyWfKZ5mCTAMDnYZ1WJOXj4V0tPcG2G/bpxYVZ18Xl1GTRq/QwZ/plnwpr2KJOJpIs5ASwMQxWJVFa9SjFDz3ACExmpPbyweNUmafPevT+cP//S///x0Xh36hqfBnkKzRspXudyHVc3yKHWCW3tUw9osNYptaGzb/zPpE8NVBD53NIwjW13pqKdNNpZzlAu5QqGIgBrEwm5Pf3HEJGny3fvVzw45/8oYxr1dMwtvALAcvYC4vaGnmSV/qwcNIT5xryFNlQvmw457c3GqN9qtGzfXX0XTomlWbsPselA8rSlpyGV1ABiI6+mr16dn50vaj+J7uvbFEZOkyZP3qp8ecv6VMcTTPVhGBnYhSujm9PlekBk8fC3vF6dd9Rm155Uy6svGhb++7jRHzaqxDbnMldAYzgW5B6Nv5Un0EJ5m680M7wGIQCxPr29sXiiMXSiMaVXdBE+XjpgkTZ6cq3x6yPkXABCFhoPP5katVkGFr1Wp8zDAQvwQ89Pa40gPAQCEpHFPr29sjo5NUE9rVR3f0+ulIyZJkyf/Url9yPkXABABaBqA3URkT69vbC4u3VtcusdL+kJh7Or1aSllEzz9+etrC6+vLby+dufw0/nDT+cPVz87VP30UOXTQ5Xbh76//Vrl9qHqnb+JeRYAAADAWqJ5emv7Oe9muo2OTaxvbKqJ43saAAAASDmR4+kHyythJE3gaQAAACA2jcxPz86XmKcXl+6ZksHTAAAAQEwajKeZquFpAAAAIDmieZpK+sHyCnttGvQm8DQAAAAQm2ieZpKmbG0/90kc39Nb5b/+8Q+dPy51/rDU+cPXnc/uHnt299izr45tfnl088ujG4tHf7j3DzFPAQAAANiM1f9v6I9/6CTrH5H1S2S9QNb+m6z9l/Rz1LUvjjSlqAAAAICd2O3ppU4fSZPq+VoJngYAALCXsdrTPyx1+kiaVIbXQ3p6eTDTkRlcjlkcAEBK8P31rXJB/LVL/P40SBa7Pf11p4+kSWVo/fPXQx0Inga7Gu/nLrQ/gqH+VrP2v/fU7Rd8pCTQn1fMqEsj/A6lj+7k47Jj+ahNymWqhPgY/5NUpmnnBTwNEsZqTz+7e8xH0qTyH2sL4TwNwC6GC9+8X3vmfklK3NnbWyjoDEM/k/a7P3+lzag9r5RRnybo/wHXns4zms9vWotXoa2EBtH8xLUE+x0OUdOyp00/TR343AKAAfs9bZQ0+f7f4WmQMlwDCnGwPEir0WS1mMsVi0E/VG32q/SJNqG3M+QPLvtErPoPpKvwrYTG0IS/4ii3dxqdj92CVTVPH+J+AMJjt6e/OuYjafL9b9fuHFZz8WPczoC390PUhJAp9jPUNNlUD0s/1cN+m9rduzyYwa9WA1tgUaPyW4q+FnXkEqhlP3H6nE9Oww97+6kz1O9ke0mUq/CthAZRRC1qmv2ONPdD3OpTCRf1u8crF3p7e3OFMkQNomO1pze/POoj6T8/yT2dP/znl9tyNk+8rp89T3NSdvfyH2YyGUHeguABaCvVYo43YWhPs7fqfvWXlDWq485ryqim8Xab5SmfzvU7F4AKA9vSVfhXQqNwAta+KxRyhbKgc8xPg4Sx3tMGSZPv/+3ZV39XKx1/9sd/VPLxsXDPFOFeeLE0F1K7n071ZAaXp3qcXczXLPAGoG1Uizl5+VRIT3NvhP26cWJVdfJ5dRk1afwOGfyZZsGb9iqSiKeJOAMtDUAUi1VVvEoxQs1zAxAaqz29sXjUJGny3b8+nT/80//+89N5zdA3FTWTreBpjXNpQs7QUywnSwBbg7ahWSPlq1zuw6pmeZQ6wa09qmFtlhrFNjS27f+Z9InhKgKfOxrGka2udNTTJhvLOcqFXKFQREANYmG3p784YpI0+e796meHnH9VlgczmZ4eJlth3JufqXZeLg9mMhkv9maj32R5cHCKSIcAoKXoBcTtDT3NLPlbPWgI8Yl7DWmqXDAfdtybi1O90W7duLn+KpoWTbNyG2bXg+JpTUlDLqsDwIDVnq59ccQkafLkveqnh5x/NSwPZjgh85LVLgzjk4t/bO2NlMPSoC0ooZvT53tBZvDwtbxfnHbVZ9SeV8qoLxsX/vq60xw1q8Y25DJXQmM4F+QejL6VJ9FDeJqtNzO8ByACdnu6dMQkafLkXOXTQ86/AIAoNBx8NjdqtQoqfK1KnYcBFuKHmJ/WHkd6CAAgJFZ7er10xCRp8uRfKrcPOf8CACIATQOwm4jr6avXp2fnS9qPmuDpz19fW3h9beH1tTuHn84ffjp/uPrZoeqnhyqfHqrcPvT97dcqtw9V7/xNzLMAAAAA1hLL0+sbmxcKYxcKY1pVx/c0AAAAkHIa9/T6xubo2AT1tFbV8DQAAAAQk8ieXt/YXFy6t7h0j5f0hcLY1evTUkp4GgAAAIhJNE9vbT/n3Uy30bGJ9Y1NNXFUTz8EAAAAdhWRNNcYkePpB8srYSRN4GkAAAB7nagObYBG5qdn50vM04tL90zJYnp64bMFn2321mylUmnLtwIAAABQGnBoVBqMp5mqE/U0eWlM/PWXX8/OzH777bdt+WIAAACAhxZ6mkr6wfIKe20a9CaxPT17a5a8JCZVL3y+UK/XZ2dmHy0/ast3AwAAAETSXGNE8zSTNGVr+7lP4qZ5Wqfq2ZlZtgXU4sWujgN9Mw8fPpzpO+C8ShR2vjZysauj6+LeL0DbLxOAqJQuD/QOT2s/mh4euFzy3QEsJJLmGsOi/zdUunjB0y/JN6uV/pnRtz5YuHnrG5q+UqlUvn28tzx9scv91Y94/mm7wODppjI97P5ABd9vs71K767sMu4XrKEk0J83REYvp1FJhiObCu+fIDBXCORjTA87xS9dHtDVAE3g7Paxr/ZM2sI6WvY+Zp425QDh8WnM7ufeN0i/8+FpIZ8hawLylLHY0zOz5GX9mz9+c+pkP3lJ3vrw7NnV2bc+rx8dO0UIOXWy//GDx4SQCJ5uGjN9B3z80PD5LnZ5ep7pOxDHQP4C8y9/U2hNAVLiaS6qmh52zVe6POD15vzO3t7hYV2vrrVN6fLAwOWSIaP2vGEyli4POImVfAFXZCp84FUYe98o8Kbm6rd0eaB3YGBAe9IQnnYS+jEwPMylGbhccg43Pey9BrHwa8xst7tXSME/I2mzJqJPEas9/Wz9GZU0eUn+6u+v/fyTm7/6ZOHnJ/tp+lMn++vb9b3j6Zm+A00rJzy9V3E7DaHzlntyTfRVujwwcPmyvF9OaA7bpE9CZwwOBMOXwXAV+ktrDLcf5iztVO9lqY6lswbL1Ht44c6mXgjGvZNH38RcT2vGVcSmAE9z3Jy6Wa978fTNqcd/Ofy3f/HBW78dniWEnDrZX1mtEEJuTt3UfRPeAHJHRwc37u106zN9B8QBZvqZbthZTsod2dGqt+dA34zj6b4u5UBSMvGkB/pmhHhafy26jF1d3Gi+O7TPC0wtnnw4HqVmWlSAmb4D7IxuRVzs6jjQd9EpkLNDyJc+T7PneWGQLsiiD1l4FqBEP936nM9vJDeEpsWeT8ii+lK+CsOlNcz0cG/vwMBA0Cnom+kInlZFLVnYPfPwtDDS6jtWCxrAL54WGhzbzw+yqDkT0aeIxZ6+frNer9frdVKvk5d1fq6aX1l287rqaUF4F7sUT2vCOaond6d3gJm+Ltcl/M4DQlLRdxe7BPvTD/kgWyiHoGbHQ3zZQmT0krAETGDG7Hq/aT5pXQGcpF4O9gTj1oxc/SnzdOnyAD9GHNrT7K26X+p09Lbjzhs2ozvWG6wuJY3J09qrMF1aHJS5breyxSF6Z0+E+WkxXpaj5+nh4eHh3uFh7Uw7AutmoWtyFOfpSLv2AfPTDOnimaf9Va3xtDTwLKwjY/27FE5K5hDeGoJv3bnkXe5Ythjeu+fW68o5HV/SgIzuGVWBBWdnKXgfcpeUeAGkquPPztek9nWKPF26PCB0EuHjae6NokB1IFY79asNzgMysv0mf2qO7HMo7VWYLi0O08N0tliNp72nBs3TQbhJZM/NmqGN4WnXxoink8HU5Cj0ltIuiRTuJuV7br47Fez19LVPrtW36/V6ffSDa8L2O2ejtr72yTW5voM9TaFC1H7mvp3pO9ChxIqNeVozyOwzTSsM/QZmpKm4CW5Ok9HOq9RMS9ZY1FMAAAsCSURBVAsAT+vRdA6+ypVG6rRdvlYsqu/VNGEyBn5iGHo0ZdBehbD2qkk246f/dZOS08O9/Kx0VE8/NEVtpcvDl0s+UTPi6dj4NDmWgD2NmR+CNc0zIYHyWO/p7boQVTuxtRdVazwtL5zWjHv3cZ96A7lCHlkzXAo5HmWv+2SzMXNJQ/HqcaQl3ryKgjI65+nqOsCbzIvHg7Nzx1FqJuECcH8sx2Qv7pAq5GHqPK1XgCyPiLPF+oMGBtxhM7opNNN9xmOYyiDn115dM+JpoYOW1nvzK4F7+XcNelqbGJ5OjBDfj7TeW/MlP0Q8rXh69MNR6mn/eHr0w1FNlfNLl/o08bSyYGym70BHV5e6jMwb8z7Q1SUvQ/MOy+fSelq7QEsf4EslCJNRes4QBKZbGCaU31Rz5nH/ZhaAW3jGD1wogwkp9rQyCur0E16QGWEU2tOKLoXSJSnnDZNRiH/1PtJfkXqoFnpa6JvZRbiLv/Vr60VP+4f1zkWLwpefrwYulwx/xwVPx8K3ybEkYhTtVLqYVdOeExIoj72ePj983omnxahamrE+P3y+GV9jC/5UCQBbaNhqTVyulRoc72qjOfGPsBFP70oSEiiPvZ4++95ZwdMGVZ9972wzqhqeBukBmgagaSQkUB57Pd3/T/0ht2ZUNTwNAAAgMgkJlMdeTwMAAACWk5BAeeBpAAAAoEESEihPXE9fvT49O1/SfgRPAwAA2NvEdGgYYnl6fWPzQmHsQmFMq2p4GgAAwN4mjkND0rin1zc2R8cmqKe1qo7qaQAAAABIRPb0+sbm4tK9xaV7vKQvFMauXp+WUsb09MJnCz7b7K3Zly9fBh8FAAAA2M1E8/TW9nPezXQbHZtY39hUE8f3NDGL+Osvv56dmX3x4kWcUwAAAACWEzmefrC8EkbSJLanZ2/NSj9hybPw+UK9Xp+dmd1+vh3nLAAAAIDNNDI/PTtfYp5eXLpnStY0T+tUPTszy7Y4ZyGEELI8mOnomYp9GIGpnqYfEgCw66kWc72FsvajciFXrPruAOmkwXiaqbpFnn5Jvlmt9M+MvvXBws1b39AElUql8u1jeBrsfcoF92cA+H6b7VV6d2WXcb9gDSWB/rxixmoxZ0oTcBBTOfUJvPP09ppEFwu5OOWCcyJ6ZrWk5YK328e+2jNpr9vRsvcx87QpBwiPT2N2P/e+QfqdF8pCPnMbT5ponqaSfrC8wl6bBr1JfE/PzJKX9W/++M2pk/3kJXnrw7NnV2ff+rx+dOwUIeTUyf7HDx47yeICTwOb4aKqcsF1VLWY83pzfmdvb6Gg69W1tqkWc7li1ZBRe14pI/eB3iXGwpvKaSpwC1TFm5qr32ox15vL5dSq6w3laeEBQ0+uUODS5IpV53DlgvcaxMKvMbPd7l4hBd/wDFkTJ5qnmaQpW9vPfRLH9/Sz9WdU0uQl+au/v/bzT27+6pOFn5/spwlOneyvb9fhaZAm3E5D6LzlnlyjtGoxlysW5f1yQrMLpU/ct8Ju192BhQ8+nabAQriTFG4/zFnaqd6iVMdS+YJlWi3m5ATSsLZafxj3TgTTE6UXP+vaOiERh02aiEX/b6jEzamb9boXT9+cevyXw3/7Fx+89dvhWULIqZP9ldUKTSZlnOrpyAwuuy9dW3p7p3rcn0N2k1FPe/slwS4PZvjDdPRMOYebGsyw9G5u7tTwNGg27HletJbBogwWngV40ihOKY5g6WRP+3ZiSjCi5Jb7Qy4BH5Um2VOWC729uVyOrwdd7dE35QieVkUtWdg9c6EsjLS2d8B1L+IXTwutkO3nG2FbhjYs9vT1m9JPTQsbl0zK6EXHUz2ZTIaK09U0J3Ev4fJghrMzJ3eGk02SPTs0y82fG54GzaVazPEDx6E9rbeqLkLVe5o7r5yR/4jN5wYVXn86cSBfW2AlYSIo0+ZuZYvj9s6eCPPTYrwsR8/lQqFQ6C0UtJP2CKybha4dUpynI6Wid9/8dCSa5Wl/VaueZrKc6skMLk/1ZAaXyfJgxtW0SGZwWRn31g6D05zM8bzvta/hadBMqsWc0EmEj6e5N4HRr+pF+bxqRm41W9FgE81BDKfzK3BQvuZQLtDZYjWe9p4QNM8R4SItz82aoY1C2bUx4ulkMLVDCr2l1MWN8t3UjojaXk9f++Rafbter9dHP7gmbL9zNmrra59cU7JSK3OGnhqUwmolPTwN7EXTOfgq1zBcLHT5WrGovlfTmI2kn0H26dl0vjUWOCBfc+Cn/3WTkuVCLz8rHdXTxBS1VYuFYtUnakY8HZtAw7rNV464xdbWnpX31nt6uy5E1U5s7UXVOk+T5cFMJuMNarPRb2lQe6rHG61me703y4MZbpg7M7is7HAPA0+D5NArQJZHmGnmwJm2ENPNRiGZx8yNvaN5flpT4Cof0iTSVQodtLTem18J3Mu/a9DT2sTwdGKE+H6k9d6aL5kgnlYY/XCUeto/nh79cFSTmTcvZ1f2kbhebHkw09HToywjczNO9bBAmh0XngatQhkF5eeGtX1+sKcNS7OVLkk5r5wx6K+nTYVXTxfkaS/OTkZZyvQ607Z5bb3oaf9BaqcmROHLz1e5YtXwd1zwdCx82yFLIk/nuH/T4JuvFdjr6fPD5514WoyqpRnr88Pnm1VgAFJCw4N37Rn129043tV28OIfYSOeBnrs9fTZ984Knjao+ux7Z5tVYADSATQNwG7CXk/3/1N/yK1ZBQYAAABsw15PAwAAAACeBgAAAOwFngYAAADsBZ4GAAAA7AWeBgAAAOwlrqevXp+enS9pP4KnAQAAgJjE8vT6xuaFwtiFwphW1fA0AAAAEJPGPb2+sTk6NkE9rVU1PA0AAADEJLKn1zc2F5fuLS7d4yV9oTB29fq0lBKeBgAAAGISzdNb2895N9NtdGxifWNTTQxPAwAAADGJHE8/WF4JI2kCTwMAAACxaWR+ena+xDy9uHTPlAyeBgAAAGLSYDzNVA1PAwAAAMkRzdNU0g+WV9hr06A3gacBAACA2ETzNJM0ZWv7uU9ieBoAAACICf7fUAAAAMBe4GkAAADAXuBpAAAAwF7gaQAAAMBe4GkAAADAXuBpAAAAwF7gaQAAAMBe4GkAAADAXuBpAAAAwF7gaQAAAMBe4GkAAADAXuBpAAAAwF7gaQAAAMBe4GkAAADAXuJ6+ur16dn5kvYjeBoAAACISSxPr29sXiiMXSiMaVUNTwMAAAAxadzT6xubo2MT1NNaVcPTAAAAQEwie3p9Y3Nx6d7i0j1e0hcKY1evT0sp4WkAAAAgJtE8vbX9nHcz3UbHJtY3NtXE8DQAAAAQk8jx9IPllTCSJvA0AAAAEJtG5qdn50vM04tL90zJ4GkAAAAgJg3G00zV8DQAAACQHNE8TSX9YHmFvTYNehN4GgAAAIhNNE8zSVO2tp/7JIanAQAAgJjg/w0FAAAA7AWeBgAAAOwFngYAAADsBZ4GAAAA7AWeBgAAAOwFngYAAADsBZ4GAAAA7AWeBgAAAOwFngYAAADsBZ4GAAAA7AWeBgAAAOwFngYAAADsBZ4GAAAA7AWeBgAAAOwFngYAAADsBZ4GAAAA7AWeBgAAAOwFngYAAADsBZ4GAAAA7AWeBgAAAOwFngYAAADsBZ4GAAAA7AWeBgAAAOwFngYAAADsBZ4GAAAA7AWeBgAAAOwFngYAAADsBZ4GAAAA7AWeBgAAAOwFngYAAADsBZ4GAAAA7AWeBgAAAOwFngYAAADsBZ4GAAAA7OX/AWMU3qvo4UcWAAAAAElFTkSuQmCC)
3:然后写springmvc.xml文件
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!-- 配置自动扫描的包 --> <context:component-scan base-package="springmvc.hlw"></context:component-scan> <!-- 配置视图解析器:如何把handler方法返回值解析成实际的物理视图--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!--前缀--> <property name="prefix" value="/WEB-INF/views/"></property>
<!--后缀--> <property name="suffix" value=".jsp"></property> </bean> </beans>
4:写HelloWorld类
package springmvc.hlw; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @Controller public class HelloWorld { /* * 1.@RequestMapping注解来映射请求的URL * 2.返回值通过视图解析器解析为实际的物理视图,对于InternalResourceViewResolver解析器, * 解析:prefix前缀+returnVal+后缀 * */ @RequestMapping("/helloworld") public String hello(){ System.out.println("HelloWorld"); return "success"; } }
return "success"经过解析,跳转到/WEB-INF/views/success.jsp return 后面是可以随便写的,但是要有对应的jsp文件。