ssm框架从controller层返回json格式数据到页面

1.在pom.xml加入依赖

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`
    2.5.4
  
    
  
  
      com.fasterxml.jackson.core
      jackson-core
      ${jackson.version}
    
    
    
      com.fasterxml.jackson.core
      jackson-databind
      ${jackson.version}
    ` 

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2.dispatcherServlet-servlet.xml中配置

 `
       
       
       
        
             
             
        
         ` 

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3.在controller中获取返回的json数据

`@Controller
public class EmployeeController {
    
//    查询所有员工
    @Autowired
    EmployeeService employeeService;

    @RequestMapping("emps")
    @ResponseBody
    public List getEmps() {
        List emps=employeeService.getAll();
        System.out.println("emps "+emps.size());
        return emps;
    }
        
}` 

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4.测试（使用postman）

5.前端接收数据并解析

渲染界面

`` 

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ajax发送多个参数

发送
接收