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  • springmvc ajax jackson

    2013-08-16 10:29:11
    如下处理的好处为: ...2. 415的处理为修改ajax contentType:'applition/json',默认传递方式会报不支持 [code="java"] $.ajax({ url:'...', data: {data:JSON.stringify(param)}, da...
    如下处理的好处为:
    
    1. 不用因为查询而另外定义bean(新增,修改:做bean的映射比较好)
    2. 415的处理为修改ajax contentType:'applition/json',默认传递方式会报不支持

    $.ajax({
    url:'...',
    data: {data:JSON.stringify(param)},
    dataType: 'json',
    success : function(results){
    if(results.result) {
    alert('totalSize : '+ results.totalSize);
    // _reFreshTable(results);
    }
    }
    })



    @RequestMapping(value="/query")
    public @ResponseBody ObjectNode queryInfo(HttpServletRequest request) {

    String data = request.getParameter("data");

    ObjectMapper mapper = new ObjectMapper(); // can reuse, share globally
    JsonNode jsonNode = null;
    try {
    jsonNode = mapper.readValue(data, JsonNode.class);
    } catch (JsonParseException e) {
    e.printStackTrace();
    } catch (JsonMappingException e) {
    e.printStackTrace();
    } catch (IOException e) {
    e.printStackTrace();
    }
    //do some query
    //deal the result

    JsonNode node = jsonNode;
    if (node != null) {
    System.out.println("extCustOrderId : "+node.path("extCustOrderId").getTextValue());
    }

    // Map<String, Object> returnMap = new HashMap<String, Object>();
    ObjectNode rootObj = mapper.createObjectNode();
    ObjectNode termInfoBackList = mapper.createObjectNode();

    termInfoBackList.put("test", "good");

    rootObj.put("result", "true");
    rootObj.put("totalSize", "22");
    rootObj.put("termInfoBackList", termInfoBackList);

    return rootObj;
    }
    展开全文
  • ajax+jackson 模拟购物车

    2019-08-05 01:16:29
    NULL 博文链接:https://withfreewind.iteye.com/blog/2043650
  • jackson--ajax驱动包.rar

    2020-07-07 02:41:56
    SpringMVC快速实现ajaxJackson的驱动包,多个版本,在tomcat4.0需要使用Jackson2.6及以上版本
  • 下载Jackson:点击下载Jackson库package com.atguigu.ajax.app.test;import java.io.IOException;import org.codehaus.jackson.JsonGenerationException; import org.codehaus.jackson.map.JsonMappingException; ...

    下载Jackson:点击下载Jackson库

    package com.atguigu.ajax.app.test;
    
    import java.io.IOException;
    
    import org.codehaus.jackson.JsonGenerationException;
    import org.codehaus.jackson.map.JsonMappingException;
    import org.codehaus.jackson.map.ObjectMapper;
    
    public class Customer {
        private int id;
        private String name;
    
        public Customer(int id, String name) {
            this.id = id;
            this.name = name;
        }
    
        public int getId() {
            return id;
        }
        public void setId(int id) {
            this.id = id;
        }
        public String getName() {
            return name;
        }
        public void setName(String name) {
            this.name = name;
        }
        public String getCity(){
            return "fuzhou";
        }
        public String getBirth(){
            return "1991-12-29";
        }
    
        public static void main(String[] args) throws JsonGenerationException, JsonMappingException, IOException {
            /**
             * 1.导入jar包
             * 2.创建ObjectMappter对象
             * 3.调用mapper的writeValueAsString
             * 4.注意:jackson使用getter方法来定位JSON对象属性
             *  可以通过添加注解org.codehaus.jackson.annotate.JsonIgnore
             *  来忽略某一个getter定义的属性
             */
            ObjectMapper mapper = new ObjectMapper();
            Customer customer = new Customer(1001, "AtGuigu");
            String jsonStr = mapper.writeValueAsString(customer);
            System.out.println(jsonStr);
        }
    }
    

    输出:

    {"id":1001,"name":"AtGuigu","city":"fuzhou","birth":"1991-12-29"}
    package com.atguigu.ajax.app.test;
    
    import java.io.IOException;
    
    import org.codehaus.jackson.JsonGenerationException;
    import org.codehaus.jackson.map.JsonMappingException;
    import org.codehaus.jackson.map.ObjectMapper;
    
    public class Customer {
        private int id;
        private String name;
    
        public Customer(int id, String name) {
            this.id = id;
            this.name = name;
        }
    
        public int getId() {
            return id;
        }
        public void setId(int id) {
            this.id = id;
        }
        //修改getName-->getCustomerName
        public String getCustomerName() {
            return name;
        }
        public void setName(String name) {
            this.name = name;
        }
        public String getCity(){
            return "fuzhou";
        }
        public String getBirth(){
            return "1991-12-29";
        }
    
        public static void main(String[] args) throws JsonGenerationException, JsonMappingException, IOException {
            /**
             * 1.导入jar包
             * 2.创建ObjectMappter对象
             * 3.调用mapper的writeValueAsString
             * 4.注意:jackson使用getter方法来定位JSON对象属性
             *  可以通过添加注解org.codehaus.jackson.annotate.JsonIgnore
             *  来忽略某一个getter定义的属性
             */
            ObjectMapper mapper = new ObjectMapper();
            Customer customer = new Customer(1001, "AtGuigu");
            String jsonStr = mapper.writeValueAsString(customer);
            System.out.println(jsonStr);
        }
    }

    输出:

    {"id":1001,"customerName":"AtGuigu","city":"fuzhou","birth":"1991-12-29"}
    package com.atguigu.ajax.app.test;
    
    import java.io.IOException;
    
    import org.codehaus.jackson.JsonGenerationException;
    import org.codehaus.jackson.annotate.JsonIgnore;
    import org.codehaus.jackson.map.JsonMappingException;
    import org.codehaus.jackson.map.ObjectMapper;
    
    public class Customer {
        private int id;
        private String name;
    
        public Customer(int id, String name) {
            this.id = id;
            this.name = name;
        }
    
        public int getId() {
            return id;
        }
        public void setId(int id) {
            this.id = id;
        }
        public String getCustomerName() {
            return name;
        }
        public void setName(String name) {
            this.name = name;
        }
        public String getCity(){
            return "fuzhou";
        }
        //添加@JsonIgnore
        @JsonIgnore
        public String getBirth(){
            return "1991-12-29";
        }
    
        public static void main(String[] args) throws JsonGenerationException, JsonMappingException, IOException {
        /**
             * 1.导入jar包
             * 2.创建ObjectMappter对象
             * 3.调用mapper的writeValueAsString
             * 4.注意:jackson使用getter方法来定位JSON对象属性
             *  可以通过添加注解org.codehaus.jackson.annotate.JsonIgnore
             *  来忽略某一个getter定义的属性
             */
            ObjectMapper mapper = new ObjectMapper();
            Customer customer = new Customer(1001, "AtGuigu");
            String jsonStr = mapper.writeValueAsString(customer);
            System.out.println(jsonStr);
        }
    }

    输出:

    {"id":1001,"city":"fuzhou","customerName":"AtGuigu"}

    Json工具类

    package com.zzy.json;
    
    import java.io.IOException;
    
    import org.codehaus.jackson.JsonGenerationException;
    import org.codehaus.jackson.JsonParseException;
    import org.codehaus.jackson.map.JsonMappingException;
    import org.codehaus.jackson.map.ObjectMapper;
    
    import com.zzy.model.Person;
    import com.zzy.model.Phone;
    
    /**
     * JsonUtil.java 说明:json工具类
     * 
     * @author zhengzy
     * @date 2015年9月25日
     */
    public class JsonUtils {
    
        public static <T> T fromJson(String strJson, Class<T> className) {
            try {
                return new ObjectMapper().readValue(strJson, className);
            } catch (JsonParseException e) {
                e.printStackTrace();
            } catch (JsonMappingException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return null;
        }
    
        public static String toJson(Object obj) {
            try {
                return new ObjectMapper().writeValueAsString(obj);
            } catch (JsonGenerationException e) {
                e.printStackTrace();
            } catch (JsonMappingException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return null;
        }
    
        public static void main(String[] args) throws JsonParseException, JsonMappingException, IOException {
            /**
             * model需要空的构造函数
             */
            Person person = new Person(1, "xiaoming", new Phone("0594", "1234567890"));
            System.out.println(JsonUtils.toJson(person));
            Person person2 = JsonUtils.fromJson(JsonUtils.toJson(person), Person.class);
            System.out.println(person2.toString());
        }
    }
    
    展开全文
  • ajax05 jackson一般运用

    2015-01-20 15:24:46
    Jackson可以轻松的将Java对象转换成json对象和xml文档,同样也可以将json、xml转换成Java对象。 1.创建动态web工程。 2.编写modle类 package org.itat.zttc.model; public class Person { ...

    Jackson可以轻松的将Java对象转换成json对象和xml文档,同样也可以将json、xml转换成Java对象。


    1.创建动态web工程。

    2.编写modle类

    package org.itat.zttc.model;
    
    
    public class Person {
    	private int id;
    	private String name;
    	private double salary;
    	private int age;
    	public int getId() {
    		return id;
    	}
    	public void setId(int id) {
    		this.id = id;
    	}
    	public String getName() {
    		return name;
    	}
    	public void setName(String name) {
    		this.name = name;
    	}
    	public double getSalary() {
    		return salary;
    	}
    	public void setSalary(double salary) {
    		this.salary = salary;
    	}
    	public int getAge() {
    		return age;
    	}
    	public void setAge(int age) {
    		this.age = age;
    	}
    	public Person(int id, String name, double salary, int age) {
    		super();
    		this.id = id;
    		this.name = name;
    		this.salary = salary;
    		this.age = age;
    	}
    	
    	public Person() {
    	}
    }
    

    package org.itat.zttc.model;
    
    import java.util.ArrayList;
    import java.util.List;
    
    public class Group {
    	private int id;
    	private String name;
    	List<User> users;
    	
    	public void addUser(User u) {
    		if(users==null) {
    			users = new ArrayList<User>();
    		}
    		users.add(u);
    	}
    	
    	public int getId() {
    		return id;
    	}
    	public void setId(int id) {
    		this.id = id;
    	}
    	public String getName() {
    		return name;
    	}
    	public void setName(String name) {
    		this.name = name;
    	}
    	public Group(int id, String name) {
    		super();
    		this.id = id;
    		this.name = name;
    	}
    	
    	public Group() {
    	}
    
    }
    

    package org.itat.zttc.model;
    
    public class User {
    	private int id;
    	private String username;
    	private String password;
    	private Group group;
    	public int getId() {
    		return id;
    	}
    	public void setId(int id) {
    		this.id = id;
    	}
    	public String getUsername() {
    		return username;
    	}
    	public void setUsername(String username) {
    		this.username = username;
    	}
    	public String getPassword() {
    		return password;
    	}
    	public void setPassword(String password) {
    		this.password = password;
    	}
    	public Group getGroup() {
    		return group;
    	}
    	public void setGroup(Group group) {
    		this.group = group;
    	}
    	
    	public User() {
    	}
    	
    	public User(int id, String username, String password, Group group) {
    		super();
    		this.id = id;
    		this.username = username;
    		this.password = password;
    		this.group = group;
    	}
    	
    	public User(int id, String username, String password) {
    		super();
    		this.id = id;
    		this.username = username;
    		this.password = password;
    	}
    }
    
     

    3.导入jackson包

    4.编写测试类

    package org.itat.zttc.test;
    
    
    import java.io.IOException;
    import java.io.StringWriter;
    import java.util.ArrayList;
    import java.util.List;
    import java.util.Map;
    
    import org.itat.zttc.model.Group;
    import org.itat.zttc.model.User;
    import org.itat.zttc.util.JsonUtil;
    import org.junit.Test;
    
    import com.fasterxml.jackson.core.JsonFactory;
    import com.fasterxml.jackson.core.JsonGenerator;
    import com.fasterxml.jackson.core.JsonParseException;
    import com.fasterxml.jackson.databind.JsonMappingException;
    import com.fasterxml.jackson.databind.JsonNode;
    import com.fasterxml.jackson.databind.ObjectMapper;
    
    public class TestJaskson {
    
    	@Test
    	public void test01() {
    		StringWriter out = new StringWriter();
    		JsonGenerator jg = null;
    		try {
    			//1、创建JsonFactory
    			JsonFactory jf = new JsonFactory();
    			//2、创建JsonGenerator
    			jg = jf.createJsonGenerator(out);
    			//使用一种相对漂亮的格式输出
    			jg.useDefaultPrettyPrinter();
    			//3、创建ObjectMapper,通过ObjectMapper来写对象
    			User u = new User(1,"劳动法","123",new Group(1,"财务处"));
    			ObjectMapper mapper = new ObjectMapper();
    			mapper.writeValue(jg, u);
    			System.out.println(out.toString());
    		} catch (IOException e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    		} finally {
    			try {
    				if(jg!=null) jg.close();
    			} catch (IOException e) {
    				e.printStackTrace();
    			}
    		}
    	}
    	
    	@Test
    	public void test02() {
    		StringWriter out = new StringWriter();
    		JsonGenerator jg = null;
    		try {
    			//1、创建JsonFactory
    			JsonFactory jf = new JsonFactory();
    			//2、创建JsonGenerator
    			jg = jf.createJsonGenerator(out);
    			//使用一种相对漂亮的格式输出
    //			jg.useDefaultPrettyPrinter();
    			//3、创建ObjectMapper,通过ObjectMapper来写对象
    			List<User> us = new ArrayList<User>();
    			User u = new User(1,"劳动法","123",new Group(1,"财务处"));
    			us.add(u);
    			u = new User(2,"猪八戒","123",new Group(1,"财务处"));
    			us.add(u);
    			u = new User(3,"张学友","123",new Group(2,"教务处"));
    			us.add(u);
    			ObjectMapper mapper = new ObjectMapper();
    			mapper.writeValue(jg, us);
    			System.out.println(out.toString());
    		} catch (IOException e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    		} finally {
    			try {
    				if(jg!=null) jg.close();
    			} catch (IOException e) {
    				e.printStackTrace();
    			}
    		}
    	}
    	
    	@Test
    	public void test02_1() {
    		List<User> us = new ArrayList<User>();
    		User u = new User(1,"劳动法","123",new Group(1,"财务处"));
    		us.add(u);
    		u = new User(2,"猪八戒","123",new Group(1,"财务处"));
    		us.add(u);
    		u = new User(3,"张学友","123",new Group(2,"教务处"));
    		us.add(u);
    		System.out.println(JsonUtil.getInstance().obj2json(us));
    	}
    	
    	@Test
    	public void test03() {
    		try {
    			String json = "{\"id\":1,\"username\":\"杂货\",\"password\":\"123\",\"group\":{\"id\":1,\"name\":\"财务处\"}}";
    			ObjectMapper mapper = new ObjectMapper();
    			User u = mapper.readValue(json, User.class);
    			System.out.println(u.getId()+","+u.getUsername()+","+u.getGroup().getName());
    		} catch (JsonParseException e) {
    			e.printStackTrace();
    		} catch (JsonMappingException e) {
    			e.printStackTrace();
    		} catch (IOException e) {
    			e.printStackTrace();
    		}
    	}
    	
    	@Test
    	public void test04() {
    		try {
    			String json = "[{\"id\":1,\"username\":\"劳动法\",\"password\":\"123\",\"group\":{\"id\":1,\"name\":\"财务处\"}},{\"id\":2,\"username\":\"猪八戒\",\"password\":\"123\",\"group\":{\"id\":1,\"name\":\"财务处\"}},{\"id\":3,\"username\":\"张学友\",\"password\":\"123\",\"group\":{\"id\":2,\"name\":\"教务处\"}}]";
    			ObjectMapper mapper = new ObjectMapper();
    			//在把json转换为list的时候,不能直接存储Bean对象,list中存储的是Map对象
    			/*List<User> us = mapper.readValue(json,List.class);
    			for(User u:us) {
    				System.out.println(u.getUsername());
    			}*/
    			/**
    			 * 所以的json都是通过map来存储的,不会直接存储bean,但是在开发中,把字符串转换为对象
    			 * 一般只会对单个的对象转换,很少会用到对对象的完全转换
    			 */
    			List<Map<String,Object>> us = mapper.readValue(json, List.class);
    			for(Map<String,Object> m:us) {
    				System.out.println(m.get("id"));
    				System.out.println(m.get("group"));
    			}
    		} catch (JsonParseException e) {
    			e.printStackTrace();
    		} catch (JsonMappingException e) {
    			e.printStackTrace();
    		} catch (IOException e) {
    			e.printStackTrace();
    		}
    
    	}
    	
    	@Test
    	public void test05() {
    		try {
    			String json = "[{\"id\":1,\"username\":\"劳动法\",\"password\":\"123\",\"group\":{\"id\":1,\"name\":\"财务处\"}},{\"id\":2,\"username\":\"猪八戒\",\"password\":\"123\",\"group\":{\"id\":1,\"name\":\"财务处\"}},{\"id\":3,\"username\":\"张学友\",\"password\":\"123\",\"group\":{\"id\":2,\"name\":\"教务处\"}}]";
    			ObjectMapper mapper = new ObjectMapper();
    			/*
    			 * 在Jaskson中提供了一种基于节点的读取方法
    			 */
    			JsonNode node = mapper.readTree(json);
    			//判断这个节点是否是数组
    			System.out.println(node.isArray());
    			System.out.println(node.size());
    			System.out.println(node.get(0).get("username"));
    			System.out.println(node.get(0).get("group").get("name"));
    		} catch (JsonParseException e) {
    			e.printStackTrace();
    		} catch (JsonMappingException e) {
    			e.printStackTrace();
    		} catch (IOException e) {
    			e.printStackTrace();
    		}
    
    	}
    	
    
    }
    

    5.编写工具类。

    package org.itat.zttc.util;
    
    
    import java.io.IOException;
    import java.io.StringWriter;
    
    import com.fasterxml.jackson.core.JsonFactory;
    import com.fasterxml.jackson.core.JsonGenerator;
    import com.fasterxml.jackson.core.JsonParseException;
    import com.fasterxml.jackson.databind.JsonMappingException;
    import com.fasterxml.jackson.databind.ObjectMapper;
    
    public class JsonUtil {
    	private static JsonUtil ju;
    	private static JsonFactory jf;
    	private static ObjectMapper mapper;
    	private JsonUtil(){}
    	
    	public static JsonUtil getInstance() {
    		if(ju==null) ju = new JsonUtil();
    		return ju;
    	}
    	
    	public static ObjectMapper getMapper() {
    		if(mapper==null) {
    			mapper = new ObjectMapper();
    		}
    		return mapper;
    	}
    	
    	public static JsonFactory getFactory() {
    		if(jf==null) jf = new JsonFactory();
    		return jf;
    	}
    	
    	public String obj2json(Object obj) {
    		JsonGenerator jg = null;
    		try {
    			jf = getFactory();
    			mapper = getMapper();
    			StringWriter out = new StringWriter();
    			jg = jf.createJsonGenerator(out);
    			mapper.writeValue(jg, obj);
    			return out.toString();
    		} catch (IOException e) {
    			e.printStackTrace();
    		} finally {
    			try {
    				if(jg!=null) jg.close();
    			} catch (IOException e) {
    				e.printStackTrace();
    			}
    		}
    		return null;
    	}
    	
    	public Object json2obj(String json,Class<?> clz) {
    		try {
    			mapper = getMapper();
    			return mapper.readValue(json,clz);
    		} catch (JsonParseException e) {
    			e.printStackTrace();
    		} catch (JsonMappingException e) {
    			e.printStackTrace();
    		} catch (IOException e) {
    			e.printStackTrace();
    		}
    		return null;
    	}
    }
    

    6.运行程序,察看运行结果

    展开全文
  • 1、项目中使用jackson所需要的依赖包 jackson需要的maven依赖 <!--Jackson required包--> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core...

    1、项目中使用jackson所需要的依赖包
    在这里插入图片描述
    jackson需要的maven依赖

    <!--Jackson required包-->
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-core</artifactId>
      <version>2.8.1</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.8.1</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-annotations</artifactId>
      <version>2.8.1</version>
    </dependency>
    

    2、servlet层将数据转化为json格式
    在这里插入图片描述在这里插入图片描述
    3、前台页面使用

    <html>
    <head>
    	<title>使用json格式的数据</title><script type="text/javascript">
    		function dosearch(){
    			//1,创建异步对象
    			var xmlHttp = new XMLHttpRequest();
    			//2,绑定事件
    			xmlHttp.onreadystatechange = function() {
    				if( xmlHttp.readystate == 4 && xmlHttp.status == 200){
    				var data = xmlHttp.responseText;
    				//eval定执行括亏甲的代码,把json数据转换为json对象
    				var jsonobj = eval("(” +data + ")");
    				//更新dom对象
    				document.getElementById( "proname " ) .value = jsonobj.name;
    
    				}
    			}
    			//3.初始异步对象的请求参数
    			var proid = document.getElementById("proid" ).value;
    			xmlHttp.open("get", "queryjson?proid="+proid,true);
    			//4.发送请求
    			xmlHttp. send();
    		}
    	</script>
    </head>
    <body>
    	<p>ajax请求使用json格式的数据</p>
    	<table>
    		<tr>
    			<td>省份编号:</td>
    			<td><input type="text" id="proid">
    			<input type="button" value="搜索"onclick="dosearch()"></td>
    		</tr>
    		<tr>
    			<td>省份名称:</td>
    			<td><input type="text" id="proname"></td>
    		</tr>
    		<tr>
    			<td>省份简称:</td>
    			<td><input type="text" id="projiancheng"></td>
    		</tr>
    		<tr>
    			<td>省会名称:</td>
    			<td><input type="text" id="proshenghui"></td>
    		</tr>
    	</table>
    </body>
    </html>
    
    

    4、启动运行,打开页面后可以按F12查看响应
    在这里插入图片描述
    这差不多就是简单地使用ajax进行响应的过程了

    展开全文
  • jackson-ajax异步刷新2

    2018-11-26 17:27:17
    我们使用jquery里面ajax方法实现,所有需要导入jquery的文件,然后在页面中引入该文件。
  • jackson-ajax异步刷新1

    2018-11-26 17:25:07
    我们使用jquery里面ajax方法实现,所有需要导入jquery的文件,然后在页面中引入该文件。
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    2018-04-23 23:31:52
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  • 里面有所需jar包,如jackson-annotations,jackson-core,jackson-databind,jstl-1.2,mysql-connector-java-5.1.7-bin,standard,不需再花多余C币
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    2016-02-21 19:18:01
    Jackson的jar all下载地址:http://jackson.codehaus.org/1.7.6/jackson-all-1.7.6.jar ObjectMapper mapper = new ObjectMapper(); String result = mapper.writeValueAsString(sc); 注意: 1.Jack
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  • 其中包括jackson-annotations-2.8.7.jar,jackson-core-2.8.7.jar,jackson-databind-2.8.7.jar
  • struts.xml文件的配置如下: < struts > ...其中,extends注意应该继承json-default,以便使用struts2的json功能,action方法的result标签中 type为json,同时添加...需导入struts2支持json的jar包和jackson的jar包
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  • @ResponseBody @RequestMapping("all") public List<User> selectAll(){ UserServiceImpl us = new UserServiceImpl(); List<User> users = us.selectAll();... @RequestMapping("...
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