{"id":2703,"date":"2020-12-15T11:32:31","date_gmt":"2020-12-15T03:32:31","guid":{"rendered":"http:\/\/127.0.0.2\/?p=2703"},"modified":"2021-01-05T14:10:07","modified_gmt":"2021-01-05T06:10:07","slug":"2020java%e6%a1%86%e6%9e%b6%e6%95%99%e7%a8%8b%e4%b9%8bspring%e7%9a%84restful%e7%9a%84crud%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/www.9713job.com\/?p=2703","title":{"rendered":"2020java\u6846\u67b6\u6559\u7a0b\u4e4bspring\u7684RESTful\u7684CRUD\u5b9e\u73b0"},"content":{"rendered":"

2020java\u6846\u67b6\u6559\u7a0b\u4e4bspring\u7684RESTful\u7684CRUD\u5b9e\u73b0<\/h3>\n

1.\u521b\u5efa\u5b9e\u4f53\u7c7b<\/p>\n

2.\u521b\u5efadao<\/p>\n

@Repository\r\npublic class UsersDao {\r\n    private static Map<Integer, User> map=null;\r\n\r\n    static{\r\n        map=new HashMap<Integer, User>();\r\n        map.put(1,new User(1,\"admin\",\"admin\",25,\"admin@qq.com\",\r\n                new Address(1,\"ah\",\"000\")));\r\n        map.put(2,new User(2,\"admin2\",\"admin2\",11,\"admin2@qq.com\",\r\n                new Address(2,\"ah2\",\"002\")));\r\n        map.put(3,new User(3,\"admin3\",\"admin3\",11,\"admin3@qq.com\",\r\n                new Address(3,\"ah3\",\"003\")));\r\n        map.put(4,new User(4,\"admin4\",\"admin4\",11,\"admin4@qq.com\",\r\n                new Address(4,\"ah4\",\"004\")));\r\n    }\r\n\r\n\r\n\r\n    private static Integer initid=5;\r\n    public void save(User user){\r\n        if (user.getId() == null) {\r\n            user.setId(initid++);\r\n        }\r\n        map.put(user.getId(),user);\r\n    }\r\n    \/\/\u67e5\u8be2\u6240\u6709\r\n    public Collection<User> getAll(){\r\n        return map.values();\r\n    }\r\n    \/\/\u67e5\u8be2\u5355\u4e2a\r\n    public User getId(Integer id){\r\n        return map.get(id);\r\n    }\r\n    \/\/\u79fb\u9664\r\n    public void delete(Integer id){\r\n        map.remove(id);\r\n    }\r\n}<\/pre>\n
3.\u63a7\u5236\u5c42<\/p>\n
@RequestMapping(\"\/admin\")\r\n@Controller\r\n@SessionAttributes(value = {\"user\"},types = {String.class})\r\npublic class UserController {\r\n    @Autowired\r\n    private UsersDao usersDao;\r\n    \/\/\/\/\/\/\/\/\/\/\/\/\/RESTful\u98ce\u683c\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\r\n    \/\/\u67e5\u8be2\u6240\u6709\r\n    @RequestMapping(value = \"\/list\",method = RequestMethod.GET)\r\n    public String list(Model model){\r\n        Collection<User> list = usersDao.getAll();\r\n        model.addAttribute(\"list\",list);\r\n        return \"admin\/list\";\r\n    }\r\n    \/\/\u5220\u9664\r\n    @RequestMapping(value = \"\/{id}\",method = RequestMethod.DELETE)\r\n    public String delete(@PathVariable(value = \"id\") Integer id){\r\n        System.out.println(\"\u6267\u884c\u5220\u9664\uff0c\u5df2\u5220\u9664\"+id);\r\n        usersDao.delete(id);\r\n        return \"redirect:\/admin\/list\";\r\n    }\r\n    \/\/\u6dfb\u52a0\u8868\u5355\r\n    @RequestMapping(value = \"\/add\",method = RequestMethod.GET)\r\n    public String add(){\r\n        System.out.println(\"add\");\r\n        return \"admin\/add\";\r\n    }\r\n    \/\/\u6dfb\u52a0\r\n    @RequestMapping(value = \"\/\",method = RequestMethod.POST)\r\n    public String save(User user){\r\n        System.out.println(\"save\");\r\n        usersDao.save(user);\r\n        return \"redirect:\/admin\/list\";\r\n    }\r\n    \/\/\u4fee\u6539\u8868\u5355\r\n    @RequestMapping(value = \"\/{id}\",method = RequestMethod.GET)\r\n    public String updateForm(@PathVariable(value = \"id\") Integer id,Model model){\r\n        System.out.println(\"edit\");\r\n        User user = usersDao.getId(id);\r\n        model.addAttribute(\"user\",user);\r\n        return \"admin\/updateForm\";\r\n    }\r\n    \/\/\u4fee\u6539\r\n    @RequestMapping(value = \"\/\",method = RequestMethod.PUT)\r\n    public String update(User user){\r\n        System.out.println(\"\u6267\u884c\u4fee\u6539\uff0c\u5df2\u4fee\u6539\");\r\n        usersDao.save(user);\r\n        return \"redirect:\/admin\/list\";\r\n    }\r\n}<\/pre>\n
4.\u67e5\u8be2\u6240\u6709\u8868\u5355\u9875<\/p>\n
<h1>\u7528\u6237\u5217\u8868<\/h1>\r\n<a href=\"add\">\u6dfb\u52a0\u7528\u6237<\/a>\r\n<table border=\"1\">\r\n    <tr>\r\n        <th>id<\/th>\r\n        <th>username<\/th>\r\n        <th>password<\/th>\r\n        <th>age<\/th>\r\n        <th>email<\/th>\r\n        <th>address<\/th>\r\n        <th>\u64cd\u4f5c<\/th>\r\n    <\/tr>\r\n    <c:forEach var=\"users\" items=\"${list}\">\r\n        <tr>\r\n            <td>${users.id}<\/td>\r\n            <td>${users.username}<\/td>\r\n            <td>${users.password}<\/td>\r\n            <td>${users.age}<\/td>\r\n            <td>${users.email}<\/td>\r\n            <td>${users.address}<\/td>\r\n            <td>\r\n                <a href=\"javascript:void(0)\" onclick=\"deleteById(${users.id})\">\u5220\u9664<\/a>\r\n                <a href=\"${pageContext.request.contextPath}\/admin\/${users.id}\" onclick=\"updateById(${users.id})\">\u4fee\u6539<\/a>\r\n            <\/td>\r\n        <\/tr>\r\n    <\/c:forEach>\r\n<\/table>\r\n<form method=\"post\" id=\"deleteForm\">\r\n    <input type=\"text\" name=\"_method\" value=\"DELETE\">\r\n    <button>\u5220\u9664<\/button>\r\n<\/form>\r\n\r\n<script>\r\n    function deleteById(id){\r\n        var form=document.getElementById('deleteForm');\r\n        form.action=id;\r\n        document.getElementById('deleteForm').submit();\r\n    }\r\n    function updateById(id){\r\n        document.getElementById('updateForm').submit();\r\n    }\r\n<\/script><\/pre>\n
5.\u6dfb\u52a0\u8868\u5355\u9875\u9762<\/p>\n
<form action=\"${pageContext.request.contextPath}\/admin\/\" method=\"post\">\r\n    <label>id : <input type=\"text\" id=\"id\" name=\"id\"><\/label><br>\r\n    <label for=\"username\">\r\n        username : <input type=\"text\" id=\"username\" name=\"username\"><br>\r\n    <\/label>\r\n    <label for=\"password\">\r\n        password : <input type=\"password\" name=\"password\" id=\"password\"><br>\r\n    <\/label>\r\n    <label for=\"age\">\r\n        age : <input type=\"text\" name=\"age\" id=\"age\"><br>\r\n    <\/label>\r\n    <label for=\"email\">\r\n        email : <input type=\"email\" name=\"email\" id=\"email\"><br>\r\n    <\/label>\r\n    <label for=\"address.addr\">\r\n        addr : <input type=\"text\" name=\"address.addr\" id=\"address.addr\"><br>\r\n    <\/label>\r\n    <label for=\"address.zipCode\">\r\n        zipCode : <input type=\"text\" name=\"address.zipCode\" id=\"address.zipCode\"><br>\r\n    <\/label>\r\n    <button>submit<\/button>\r\n<\/form><\/pre>\n
6.\u4fee\u6539\u8868\u5355\u9875\u9762<\/p>\n
<form action=\"${pageContext.request.contextPath}\/admin\/\" method=\"post\">\r\n    <input type=\"hidden\" name=\"_method\" value=\"PUT\">\r\n    <label for=\"id\">id : <input type=\"text\" id=\"id\" name=\"id\" value=\"${user.id}\"><\/label><br>\r\n    <label for=\"username\">\r\n        username : <input type=\"text\" id=\"username\" name=\"username\" value=\"${user.username}\"><br>\r\n    <\/label>\r\n    <label for=\"password\">\r\n        password : <input type=\"password\" name=\"password\" id=\"password\" value=\"${user.password}\"><br>\r\n    <\/label>\r\n    <label for=\"age\">\r\n        age : <input type=\"text\" name=\"age\" id=\"age\" value=\"${user.age}\"><br>\r\n    <\/label>\r\n    <label for=\"email\">\r\n        email : <input type=\"email\" name=\"email\" id=\"email\" value=\"${user.email}\"><br>\r\n    <\/label>\r\n    <label for=\"address.addr\">\r\n        addr : <input type=\"text\" name=\"address.addr\" id=\"address.addr\" value=\"${sessionScope.user.address.addr}\"><br>\r\n    <\/label>\r\n    <label for=\"address.zipCode\">\r\n        zipCode : <input type=\"text\" name=\"address.zipCode\" id=\"address.zipCode\" value=\"${user.address.zipCode}\"><br>\r\n    <\/label>\r\n    <button>submit<\/button>\r\n<\/form><\/pre>\n","protected":false},"excerpt":{"rendered":"
2020java\u6846\u67b6\u6559\u7a0b\u4e4bspring\u7684RESTful\u7684CRUD\u5b9e\u73b0 1.\u521b\u5efa\u5b9e\u4f53\u7c7b 2.\u521b\u5efadao @Rep […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-2703","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts\/2703","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2703"}],"version-history":[{"count":2,"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts\/2703\/revisions"}],"predecessor-version":[{"id":2705,"href":"https:\/\/www.9713job.com\/index.php?rest_route=\/wp\/v2\/posts\/2703\/revisions\/2705"}],"wp:attachment":[{"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2703"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2703"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.9713job.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2703"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}